Little evil would be done in the world if evil never could be done in the name of good.

"People's minds are trained largely at the expense of their hearts." This is not so; it is only that there are more educable minds than there are educable hearts.

We are valued wither too highly or not high enough; we are never taken at our real worth.

Nothing is less promising than precocity. A young thistle is more like a future tree than is a young oak.

When curiosity turns to serious matters, it's called research.

You stay young as long as you can learn, acquire new habits, and suffer contradictions.

Nothing is so irretrievably missed as an opportunity we encounter every day.