To be successful in life, one should have the characteristic of independence, that is, he/she has the ability to think critically. Through critial thinking, one is capable of analyzing insightfully, concentrating on the right target, thereby making a wise decision.
Thinking critically can enable to analyze problems insightfully. we live in a world where controversial issues are often simply taken for granted. For example, most people are reluctant to think carefully about issues like whether boys and girls should take separate classes. Recently a high school in Beijing announced that their students from them on take separate classes. Many parents support such rediculous decision without careful consideration. They are poor thinkers. Critical thinking is but to ask some simple yet essential questions, which always brings amazing sometimes appalling outcomes. Is such a scheme capable of eliminating underage sexual behaviors among adolescents? Does such a scheme guarantee boys and girls free of  negative effects? Sadly, the decision had been made but the question left unanswered.
Thinking critically can help one concentrate on right target. We all only and exactly24 hours a day, but we often mountainous work to do in hands, along with which many personal affairs seem equally urgent.Concentrating on right target is probably the only way to overcome such dilemmas. For example, ETS has recently announced that GRE examination will be transformed back to paper based test. Grumbles are all around, and complaints are posted almost on every BBS on the Internet. But if student think critically, however, they will find out the simple fact that even if ETS had made an awkward decision, test preparers should concentrate on the right target-preparing for the tests as prudently as possible, and at the same time, grumbling never helps.
Only by thinking critically can one make decisions wise and prudent. Sound decision making is essential to success. Decisions such as which movie theater we should go tonight are simple enough to make by tossing a coin, but decisions such as which university or which major we should choose are complicated enough so that we need careful comparisons. A comparison sheet will helpa lot, simply by listing several relevant questions  such as "Am I really interesting in this major?" or "Are there more opportunities in the city where the university is located?" By analyzing insightfully and concentrating on the right targets, wise desisions are not hard to reach at all.