We are what we repeatedly do. Excellence, then, is not an act, but a habit.

科学家之间的合作是解决复杂问题的关键。

White is the most wonderful color because within it one can find all the colors of the rainbow.

白天鹅不每天沐浴，也是洁白的；黑乌鸦不每天暴晒，也是黑的。