All truly wise thoughts have been thought already thousands of times; but to make them truly ours, we must think them over again honestly, until they take root in our personal experience.
所有真正明智的思想都已经被思考过几千次了;但要使它们真正成为我们的，我们必须诚实地重新考虑它们，直到它们在我们的个人经验中生根。