Sustainability isn't a choice; it's an obligation we owe to the planet and future dairy farmers.
The lion doesn't care about the opinions of the sheep. 
The best way to learn a new programming language is by writing programs in it.
The habits of life form the soul, and the soul forms the countenance.
The soul is not a thing you can have. It is a way of being in the world.
死者比我们更活生生,因为他们是完整的。
我已经履行了我的职责。我证明了庞加莱猜想,我在数学上没有什么可做的了。