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　　There is one difference between the sexes on which every expert and study agrees：men are more aggressive than women．It shows up in 2-year-olds．It continues through school days and persists into adulthood．It is even constant across cultures．And there is little doubt that it is rooted in biology．

　　If there's a woman’s trait(特点)which is the same as men’s aggressiveness, it's what social scientists refer to as the result of“education”．Feminists have argued that the caring nature of women is not biological in origin, but rather has been forced into women by a society that wanted to keep them in the home．But the signs that it is at least partly inborn are too numerous to ignore．Just as tiny infant girls respond more readily to human faces, female toddlers(学步者)learn much faster than males how to pick up nonverbal cues(非言语暗示)from others．And grown women are far more skilful than men at interpreting facial expressions：A recent study by University of Pennsylvania brain researcher Ruben Gur showed that they easily read emotions such as anger, sadness and fear．The only such emotion men could pick up was disgust．

　　What difference do such differences make in the real world?Among other things, women appear to be somewhat less competitive--or at least competitive in different ways--than men．At the Harvard Law School, for instance, female students enter with qualities just as outstanding as those of their male peers．But they don' t qualify for the well-known Law Review in proper numbers, a fact some school officials owe to women' s discomfort in the incredibly competitive atmosphere．

　　Students of management styles have found fewer differences than they expected between men and women who reach leadership positions, perhaps because many successful women deliberately imitate men．But an analysis by Purdue social psychologist Alice Eagly of 166 studies of leadership style did find one difference：Men tend to be more“autocratic”-making decisions on their own--while women tend to consult colleagues more often．Studies of behavior in small groups turn up even more differences．Men will typically dominate the discussion, says University of Toronto psychologist Kenneth Dion, spending more time talking and less time listening．

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　　How to improve my life? Many people think that they have to accept whatever life throws at them．They'll say, "This is my fate, my destiny．I cannot change it．"

　　Of course not! You don't have to suffer needlessly．Your destiny depends on you, not on any other external factors．

　　I know someone who says she just accepts what life gives her because she has done everything she can to improve it．Guess what her lifestyle is? She wakes up in the morning, goes to work, comes back home, relaxes, chats with people, watches TV, then goes to sleep．Next day, the same routine cycle follows．

　　Huh! Is this what she calls "doing her best"? She believes she has tried her best and just accepts it in her heart that this is the life that God has intended for her to live; that her luck can only change if God wills it．Of course God wants us to be happy and live our life to the fullest, but we have to do our share of exerting(运用)the effort to live the life of our dreams．

　　Remember that you reap what you sow．You just don't sit around and wait for a million dollars to fall from the sky．You have to get off the couch, get your eyes off the TV screen, get your hands off the phone．Don’t expect your luck to change unless you do something about it．If something goes wrong, don't just regard it as a temporary setback; but use it as feedback．Learn your lesson, make the most of the situation, and do something to solve the problem．It's not enough to think positively; you also have to act positively．

　　If someone's life is in the trouble, do you just hope and pray that things will turn out fine? Of course not! You get to do anything you can to save the person．So it is with your own life．It is not enough to hope for the best, but you have to do your best．In other words, don't just stand(or sit)there, do something to improve your life．

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　　Sheep, like turkeys and ostriches, are not considered the cleverest animals．British scientists said last Wednesday human may have underestimated(低估)the woolly creatures．They could be much smarter than we think．

　　Researchers at the Babraham Institute in Cambridge, southern．England, have shown that animals have a good memory system and are extremely good at recognizing faces--which they think is a sure sign of intelligence．

　　Behavioral scientist Keith Kendrick and his friends trained 20 sheep to recognize and distinguish(区别)25 pairs of sheep faces and used electrodes(电极)to measure their brain activity, which showed they could remember 50 faces for up to two years．

　　"If they can do that with faces, the fact is that they have to have reasonable intelligence, otherwise, what is the point of having a system for remembering anything else," Kendrick said in an interview．

　　So hours of seemingly mindless eating grass may not be so mindless after all．

　　Kendrick believes sheep got their reputation as dumb animals because they live in large groups and do not appear to have much individuality and are frightened of just about everything．

　　"All animals, including humans, once they are frightened don't tend to show signs of intelligent action," he explained．

　　In research reported in the science journal Nature, Kendrick and his team showed that sheep, like humans, have a specialized system in the brain, which allows them to distinguish between many different faces that look extremely similar．

　　"The most important findings of the study is that they are able, both from a behavioral point of view and from looking at the way the brain is organized, to remember a large number of faces of individuals for a very long time," said Kendrick．"It is a very strange system．They are showing similar abilities in many ways to humans．"