The best programs are written so that computing machines can perform them quickly and so that human beings can understand them clearly.

Make-up can only make you look pretty on the outside but it doesn’t help if you're ugly on the inside. Unless you eat the make-up.

To every action there is always opposed an equal reaction； or， the mutual actions of two bodies upon each other are always equal， and directed to contrary parts.

夜晚是个骗子，但黎明说出真相。