数学是理性的音乐。

最重要的是对自己诚实，对所做之事诚实。

When you open paint， even a tiny bit， it will always find its way to your clothes no matter how careful you are. Dress accordingly.

We shall not cease from exploration, and the end of all our exploring will be to arrive where we started and know the place for the first time.

The chief beauty about time is that you cannot waste it in advance. The next year, the next day, the next hour are lying ready for you, as perfect, as unspoiled, as if you had never wasted or misapplied a single moment in all your life. You can turn over a new leaf every hour if you choose.

Be yourself, because everyone else is taken.

I have never met a person I admired who did not read more books than I did.