La vie est une tragédie pour celui qui sent, et une comédie pour celui qui pense.

The entrepreneur is the pivot on which everything turns.

In the state of nature, indeed, all men are born equal, but they cannot continue in this equality. Society makes them lose it, and they recover it only by the protection of the laws.

Sometimes the hardest thing in life is to know which bridge to cross and which to burn.

经典是一本永远没有说完自己话的书。

量子理论的真正意义不在于方程本身，而在于我们对其的解释。