What is the difference between a Turing machine and the modern computer? It's the same as that between Hillary's ascent of Everest and the establishment of a Hilton hotel on its peak.

世界需要可靠的能源，而煤炭仍然在其中发挥着关键作用。

迷恋歌舞女色的心太浓重了，就会生出虚怯的毛病来；追求钱财利益的心太浓重了，就会生出贪得无厌的毛病来；热衷功名成就的心太浓重了，就会生出造作的毛病来；追求声誉名望的心太浓重了，就会生出言行偏激的毛病来。

未来只是一个我们用来逃避现在的概念。

农业成功的真正标准是跨代的可持续性。