The dead are always looking down on us, they say. But we don't look back.

Anybody who has been seriously engaged in scientific work of any kind realizes that over the entrance to the gates of the temple of science are written the words: Ye must have faith.

"The role of the infinitely small in nature is infinitely large."

君主对于有才能的贤良之人应当抬举，让他处于尊位，富贵绵长；对于没有能力且无德的人应当废弃，让他贫困低贱，成为受驱使的奴仆。

The key to success is to keep growing in all areas of life - mental, emotional, spiritual, as well as physical.

The only thing that is certain is uncertainty.