People are afraid to pursue their most important dreams, because they feel that they don't deserve them, or that they'll be unable to achieve them. We, their hearts, become fearful just thinking of loved ones who go away forever, or of moments that could have been good but weren't, or of treasures that might have been found but were forever hidden in the sands.

The truth is rarely pure and never simple.

The most important thing in a program is the data structure.

I have made a ceaseless effort not to ridicule， not to bewail， not to scorn human actions， but to understand them.

We must be free not because we claim freedom, but because we practice it.

远水救火是难办到的，再好的亲戚也不如近处的邻居。

平等不仅是一种道德要求，更是一种经济必需。