数学不是一项观赏性运动；要理解它，必须积极参与其中。

The very important thing you should have is patience.

大型工业企业是美国经济中最强大的机构，其管理者是最具影响力的经济决策群体。

The human being cannot live in a condition of emptiness for very long: if he is not growing toward something, he does not merely stagnate; the pent-up potentialities turn into morbidity and despair, and eventually into destructive activities.

百姓如果没有粮食，就不能供君王役使。所以，粮食不可不努力耕种，用度不可不厉行节俭。 

Laughter is a mechanism to bond large groups.

我们不试图预测未来；我们只是试图买入便宜的东西。

Great companies are built on great products and even greater people.