If you would be a real seeker after truth, it is necessary that at least once in your life you doubt, as far as possible, all things.
如果你想成为真理的真正追求者,那么在你的一生中至少要有一次尽可能怀疑一切。
People who say it cannot be done should not interrupt those who are doing it.
Every tree we plant today is a legacy for generations we'll never meet.