The difference between a moral man and a man of honor is that the latter regrets a discreditable act even when it has worked.
数学的本质在于它揭示模式和对称性的力量。
质量不是命运；它是一种设计。
The coal industry has a critical role to play in providing affordable and reliable energy while we transition to a lower-carbon future.
The whole conviction of my life now rests upon the belief that loneliness, far from being a rare and curious phenomenon, peculiar to myself and to a few other solitary men, is the central and inevitable fact of human existence.
A man takes a rocket ship into the stars, and all I got is this broken guitar.