大自然造就了人们在身体和心智的才能上如此相等，以至于尽管有时候可能会有一个人明显在身体上更强壮，或者在思维上更敏捷，但总结一切，人与人之间的差异并不是如此重大，以至于一个人可以因此而主张自己有权享受任何另一个人也可以同样主张的权益。

The best way of learning about anything is by doing.

以前的事不要再评说了，做完的事不要再议论了，过去了就不要再追咎。

The business of education is not to make the young perfect in any one of the sciences, but so to open and dispose their minds as may make them capable of any, when they shall apply themselves to it.

To teach mathematics is to inspire the next generation of thinkers and problem solvers.