The human understanding is unquiet; it cannot stop or rest, and still presses onward, but in vain. Therefore it is that we cannot conceive of any end or limit to the world, but always as of necessity it occurs to us that there is something beyond... But he is no less an unskilled and shallow philosopher who seeks causes of that which is most general, than he who in things subordinate and subaltern omits to do so

If a man's wit be wandering, let him study the mathematics; for in demonstrations, if his wit be called away never so little, he must begin again.

Praise is the reflection of virtue.

We think according to nature. We speak according to rules. We act according to custom.

It was well said that envy keeps no holidays.

The wonder of a single snowflake outweighs the wisdom of a million meteorologists.

Be not penny-wise. Riches have wings. Sometimes they fly away of themselves, and sometimes they must be set flying to bring in more.