I don't need a mirror to know my worth.

Music has taught me to cherish every moment.

Quality is never an accident; it is always the result of intelligent effort.

Just as in a good novel， a good program must be full of interesting ideas， and very， very few words.

进步更有效的原因似乎在于青年时期大脑可塑性强的良好教育，以及成年后达到的高标准卓越。