The world is a beautiful place, but it has its thorns.
世界是一个美丽的地方，但它有它的荆棘。
Don't let your fear decide your future.
Quality is not a problem; it is a solution.
The end of all our exploring will be to arrive where we started and know the place for the first time.
Democracy... while it lasts is more bloody than either aristocracy or monarchy. Remember, democracy never lasts long. It soon wastes, exhausts, and murders itself. There is never a democracy that did not commit suicide.
变革在开始时最难，在中间最混乱，在结束时最好。