戰(zhàn)爭(zhēng)是一場(chǎng)悲劇，但有時(shí)是必要的。
To solve a mathematical problem is to uncover a piece of the universal puzzle.
The deepest urge in human nature is the desire to be important.
一個(gè)想法只有執(zhí)行得好才算好。
我不與任何人競(jìng)爭(zhēng)，我與自己競(jìng)爭(zhēng)。
當(dāng)你長(zhǎng)時(shí)間凝視深淵時(shí)，深淵也在凝視著你。
Do not try to change the outer world; change your inner world, and the outer world will adjust itself.