真相很少是纯粹的，也从不简单。
The truth is rarely pure and never simple.
无论我们承认与否，过去总是存在于我们的生活中。
A good mechanic is not merely a man who files and hammers, but one who can originate and perfect.
The sidelines are not where you want to live your life. The world needs you in the arena.
A good mathematician is someone who can see analogies between theorems; a great mathematician is someone who can see analogies between analogies.
遗传研究应该为人类服务，而不仅仅是商业利益。