The existence of the natural world is the same kind of fact as the existence of any proposition.
自然界的存在与任何命题的存在是同一类型的事实。
一个人的首要职责是为自己思考。
It's the possibility of having a dream come true that makes life interesting...
Most men lead lives of quiet desperation.
无论做任何事情，总逃不过“持之以恒”四个字，如果三天打鱼两天晒网，即使再聪明、再有天赋，也不会有什么成就。