The whole art of teaching is only the art of awakening the natural curiosity of young minds for the purpose of satisfying it afterwards.
The wonder is, not that the field of stars is so vast, but that man has measured it.
The mania of thinking renders one unfit for every activity.
I prefer the folly of enthusiasm to the indifference of wisdom.
A simple style is like white light. Although complex, it does not appear to be so.
The future is a convenient place for dreams.