色多多在线观看播放-色多多在线观看高清免费-色多多在线观看视频-色多多在线看-欧美aaaaa性bbbbb小妇-欧美aaaav免费大片

The most powerful motivator is not money. It’s the opportunity to learn, grow in responsibilities, contribute to others, and be recognized for achievements.

The unity of mathematics is not imposed but discovered.

The job of the artist is always to deepen the mystery.

Friends congratulate me after a quarterly-earnings announcement and say, 'Good job, great quarter.' And I'll say, 'Thank you, but that quarter was baked three years ago.'

Those who deny freedom to others, deserve it not for themselves; and, under a just God, can not long retain it.

I have great faith in fools; self-confidence my friends call it.

Safety is not just a policy, it's a way of life.

數學的歷史是人類心靈獨創性和創造力的證明。

擴展程序的最好方法是擴展它。