In order to seek truth, it is necessary once in the course of our life to doubt, as far as possible, of all things.

If you've been playing poker for half an hour and you still don't know who the patsy is, you're the patsy.

A man who dares to waste one hour of life has not discovered the value of life

Life must be lived as play.

My reading of history convinces me that most bad government results from too much government.

The earth is like a spaceship that didn't come with an operating manual.

Exceptional claims demand exceptional evidence.

Landlords, like all other men, love to reap where they never sowed.

I don't need you to remind me of my age. I have a bladder to do that for me.

Any idiot can face a crisis; it's this day-to-day living that wears you out.

The more you live in the present moment, the more the fear of death disappears.

Mastery of the emotions is fundamental to a virtuous life.

To do a great right do a little wrong.

History has shown there are no invincible armies.

Middle age has been defined as what happens when a person's broad mind and narrow waist change places.

Consistency is contrary to nature, contrary to life. The only completely consistent people are the dead.

There is one common struggle against those who have appropriated the earth, the money, and the machines.

Science is the outcome of being prepared to live without certainty and therefore a mark of maturity. It embraces doubt and loose ends.

Every morning we are born again. What we do today is what matters most.

I can't wait to figure out what is wrong with me, so I can say this is the way that I used to be.

Life is like a library owned by the author. In it are a few books which he wrote himself, but most of them were written for him.