弦理論的數(shù)學(xué)美感表明它必須是自然界終極描述的一部分。
I don't run from my past, I just don't bring it with me.
I don't let the world change my spirit.
The strength of a building is not just in its materials, but in the spirit of the people who use it.
要真正理解宇宙,我們必須首先理解我們理解的極限。