Resource development must balance economic growth with environmental stewardship.

生存就是在苦难中找到意义。

科学是一场马拉松，而不是短跑。

自守形式的研究证明了对称性在数学中的力量。

Intuition is the key to everything, in painting, filmmaking, business - everything. I think you could have an intellectual ability, but if you can sharpen your intuition, which they say is emotion and intellect joining together, then a knowingness occurs.

PAC学习框架提供了一种形式化的方法来量化概念类的可学习性。