我只是个四岁的孩子，每天都在成长一些。

解释：今天不努力做事，明天就会财货贫乏。过去的时光已经过去了，再也不会回来了。

成功是一段旅程，而不是一个目的地。

You are always a valuable, worthwhile human being — not because anybody says so, not because you're successful, not because you make a lot of money — but because you decide to believe it and for no other reason.

The most effective way to promote democracy is not through military intervention but through the slow and steady process of building institutions and promoting economic development.