Liberty is a product of order.

Every science begins as philosophy and ends as art; it arises in hypothesis and flows into achievement.

The time when you need to do something is when no one else is willing to do it, when people are saying it can't be done.

Art lies in conceiving and designing, not in the actual execution' - this was left for lesser minds.

So prominent was the Jewish role in the foreign commerce of Europe that those nations that received the Jews gained and the countries that excluded them lost in the volume of international trade.

If we have never been amazed by the very fact that we exist, we are squandering the greatest fact of all.

Science tells us how to heal and how to kill; it reduces our death rate in retail and then kills us wholesale in war; but only wisdom - desire coordinated in the light of all experience - can tell us when to heal and when to kill.