The value of any mental activity is measured by its contribution to successful living.
任何心理活动的价值都以其对成功生活的贡献来衡量。
对付一个不自由的世界唯一的方法就是变得如此绝对自由，以至于你的存在本身就是一种反叛行为。
The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.
Nobody cares if you can't dance well. Just get up and dance. Great dancers are great because of their passion.
"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."