数学不仅仅是数字和方程；它是关于理解宇宙中的深层模式和联系。
Retire into yourself and ask yourself this question: Must I write？ If the answer is yes， then you must keep writing.
The causal framework is the foundation of scientific reasoning.
在一切事情中，创造系统是必要的。
Look up at the stars and not down at your feet. Try to make sense of what you see, and wonder about what makes the universe exist. Be curious.
