Just as iron rusts from disuse... even so does inaction spoil the intellect.

Nothing strengthens authority so much as silence.

Putting your hand into a river, you simultaneously touch the last of what is passing and the first of what is coming.

It is an acknowledged fact that we perceive errors in the work of others more readily than in our own.

The knowledge of the past times and of the places of the earth is both an ornament and nutriment to the human mind.

What is fair in men, passes away, but not so in art

As every divided kingdom falls, so every mind divided between many studies confounds and saps itself.