Chemistry is the science of connections, both literal and metaphorical.

I’m not perfect but I’m trying my best every day.

I must study politics and war that my sons may have liberty to study mathematics and philosophy.

天下不能由一个人治理，就设置官员来治理。

Success in life means doing that which is the very best for us, under the conditions in which we are placed.

我一直认为学校里那些有点麻烦的男孩，往往是将来能做出真正有趣事情的人。