The test of a first-rate intelligence is the ability to hold two opposed ideas in the mind at the same time, and still retain the ability to function.

This was a very short visit, but it plunged the little prince into deep dejection.

In theory, there is no difference between theory and practice. But, in practice, there is.

The choice is simple: either we protect nature now, or we pay the price later.

创造就是抵抗——抵抗沉默，抵抗遗忘。