我曾经整天不吃饭，整夜不睡觉，去苦苦思索，结果没有益处，还不如去学习。
"Life is what happens when you're busy making other plans."
The architect must design for the future while honoring the past.
The truth is rarely pure and never simple.
In the world of physics, we often find that the simplest questions are the hardest to answer.