如果你感到自己已经很完美了，那么你永远不会达到你本可以达到的高度。
If you are under the impression you have already perfected yourself， you will never rise to the heights you are no doubt capable of.
科学是一段旅程，而不是终点。
一个观念的效用决定了它在精神生活中的地位。
The only way to discover the limits of the possible is to go beyond them into the impossible.
永远不要把运动和行动混为一谈。