Medicine, the only profession that labors incessantly to destroy the reason for its existence.

I believe every human has a finite number of heartbeats. I don't intend to waste any of mine

Death-the last voyage, the longest and the best.

Do all the good you can, by all the means you can, in all the ways you can, in all the places you can, at all the times you can, to all the people you can, as long as ever you can.

Do not let what you cannot do interfere with what you can do.

If a man does not make new acquaintances as he advances through life, he will soon find himself left alone; one should keep his friendships in constant repair.

If it's natural to kill, how come men have to go into training to learn how?

We must all hang together or assuredly we shall all hang separately.

this too, shall pass.

Give me the avowed, the erect, the manly foe; Bold I can meet--perhaps may turn his blow; But of all plagues, good Heaven, thy wrath can send, Save, save, oh! save me from the candid friend.

Give people enough guidance to make the decisions you want them to make. Don't tell them what to do, but encourage them to do what is best.

The scourge of life, and death's extreme disgrace, The smoke of hell,--that monster called Paine.

I am doomed to an eternity of compulsive work. No set goal achieved satisfies. Success only breeds a new goal. The golden apple devoured has seeds. It is endless.

There will come a time when you believe everything is finished. That will be the beginning.

Enthusiasm moves the world.

Friendships are fragile things and require as much care in handling as any other fragile and precious thing.

Greater consumption due to increase in population and growth of income heightens scarcity and induces price run-ups. A higher price represents an opportunity that leads inventors and businesspeople to seek new ways to satisfy the shortages. Some fail, at cost to themselves. A few succeed, and the final result is that we end up better off than if the original shortage problems had never arisen. That is, we need our problems, though this does not imply that we should purposely create additional problems for ourselves.

There is thy gold; worse poison to men's souls, Doing more murther in this loathsome world, Than these poor compounds that thou mayst not sell:.

Amiable weakness of human nature.

If you can't sleep, don't count sheep. Talk to the Shepherd.