We are at a unique stage in our history. Never before have we had such an awareness of what we are doing to the planet, and never before have we had the power to do something about it.
The only thing that can make you happy is your own heart.
The supreme happiness of life is the conviction that we are loved.
最崇高的行为是将他人置于自己之前。
The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.