The elegance of a mathematical proof is in its simplicity and clarity.

Communicate everything you possibly can to your partners. The more they know, the more they'll understand. The more they understand, the more they'll care. Once they care, there's no stopping them.

相机是遇见世界现实的一种流动方式。

All mankind... being all equal and independent, no one ought to harm another in his life, health, liberty or possessions.