我们不能借着肉贩，啤酒商或面包师的善行而获得晚餐，而是源于他们对自身利益的看重。

Innovation in physics often comes from looking at old problems in new ways.

Success is a journey, not a destination. Keep pushing forward.

There is no hope without action.

The highest possible stage in moral culture is when we recognize that we ought to control our thoughts.

如果你因失去了太阳而流泪，那么你也将失去群星了。