如果你正在改变世界，你就是在做重要的事情。你会兴奋地起床。

The most important thing in life is to stop saying 'I wish' and start saying 'I will'.

最大的风险就是不冒任何风险。

"A book is a conversation across time."

I still haven't found what I'm looking for.

The best books are those that leave you changed.

Give the pupils something to do, not something to learn; and the doing is of such a nature as to demand thinking; learning naturally results.

"El pasado no es más que una ilusión, pero es una ilusión necesaria."

The new source of power is not money in the hands of a few, but information in the hands of many.