成为哲学家不仅仅是有微妙的思想，甚至也不是建立一个学派，而是如此热爱智慧，以至于按照它的指示生活。
To be a philosopher is not merely to have subtle thoughts, nor even to found a school, but so to love wisdom as to live according to its dictates.
Science is not about being right; it's about being less wrong over time.
Death is present every day, but we don't see it until it touches us directly.
I pursue no objectives, no systems, no tendency; I have no program, no style, no direction.