There are many Beths in the world, shy and quiet, sitting in corners till needed, and living for others so cheerfully that no one sees the sacrifices till the little cricket on the hearth stops chirping, and the sweet, sunshiny presence vanishes, leaving silence and shadow behind.
要注重方向而非盲目努力
The most profound discoveries in mathematics often come from questioning the most basic assumptions.
Everyone is a moon, and has a dark side which he never shows to anybody.