"The city’s poor are like the roots of a tree; unseen, but essential to its life."
沙漠之所以美丽，是因为在它的某个角落隐藏着一口井水……
The joy of discovery in mathematics is unparalleled.
La poesía es la única prueba concreta de la existencia del hombre.
Each time you reach out to people， bring them a blessing； then they’ll be happy to see you when you bring them a problem.
最好的投资是投资于能够创造价值的人。
The universe we observe has precisely the properties we should expect if there is, at bottom, no design, no purpose, no evil, no good, nothing but blind, pitiless indifference.