I don't think you can ever do your best. Doing your best is a process of trying to do your best.
真正的挑战不是生产更多粮食,而是用更少的浪费更聪明地种植。
Mathematics is not just a collection of abstract concepts, but a language that allows us to understand the universe.
The teacher is not in school to impose certain ideas or to form certain habits in the child, but is there as a member of the community to select the influences which shall affect the child and to assist him in properly responding to those influences.
有时候,最艰难的战斗是在我们自己的脑海中进行的。