The best ideas often come from listening—to farmers, scientists, and families.

生活本身没有任何价值，它的价值在于怎样使用它。

动作从不撒谎。

Mathematics is the art of giving the same name to different things.

The only real failure in life is not to be true to the best one knows.

当然，言语是人类使用的最强大的药物。