成功不是终点，失败也不是致命的：重要的是继续前进的勇气。
Success is not final, failure is not fatal: It is the courage to continue that counts.
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.
任何圆的周长与其直径的比率小于3 1/7但大于3 10/71。
Geometry is knowledge of the eternally existent.
If you don’t take risks, you’ll always work for someone who does.
确实，天才的天赋和他的人类品质有时会差异如此巨大，人们不得不怀疑天赋平庸点也许是件好事。