数学不是一项观赏性运动；要理解它，必须积极参与其中。
No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.
Every performance is a new opportunity to connect with the audience on a deeper level.
我不想变得完美，但我确实想成为一个榜样。
释义：他强调空气密度对于物质形态的决定性作用，认为物质的形态和性质都受到空气密度的影响。
The pain you feel today will be the strength you feel tomorrow.