我不是给予者，我是索取者。
Le bonheur n'est pas chose aisée. Il est très difficile de le trouver en nous, impossible de le trouver ailleurs.
A true scientist does not seek fame or fortune, but seeks the truth.
To feed the world, we must first respect the resources we have.
自由确实珍贵；如此珍贵以至于必须谨慎配给。
I decided, very early on, just to accept life unconditionally; I never expected it to do anything special for me, yet I seemed to accomplish far more than I had ever hoped. Most of the time it just happened to me without my ever seeking it.