心灵是大自然对生存挑战的回应。

The strongest is never strong enough to be always the master， unless he transforms strength into right， and obedience into duty.

The improver of natural knowledge absolutely refuses to acknowledge authority as such.  

You are not defined by your past. You are prepared by your past.

无人机的未来是智能、协同和自主的。

The greatest discovery is that human beings can alter their lives by altering the attitudes of their minds.

恐龙灭绝是因为它们没有太空计划。如果我们因为没有太空计划而灭绝，那是我们活该！