All knowledge is precious, whether or not it serves the slightest human use.

If we would have new knowledge, we must get a whole world of new questions.

Zeal without knowledge is fire without light.

Not life, but good life, is to be chiefly valued.

If the highest aim of a captain were to preserve his ship, he would keep it in port forever.

If we desire respect for the law, we must first make the law respectable.

Inspiration arrives as a packet of material to be delivered.

You are never too old to set another goal or to dream a new dream.

Happiness is not a matter of intensity but of balance, order, rhythm, and harmony.

A people free to choose will always choose peace.