Losing your way on a journey is unfortunate. But, losing your reason for the journey is a fate more cruel.

Old age is by nature rather talkative.

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

I think the highest and lowest points are the important ones. Anything else is just...in between.

Life is made up of marble and mud.

Old minds are like old horses; you must exercise them if you wish to keep them in working order.

Life does not need to mutilate itself in order to be pure.

Maybe this world is another planet?s hell.

People can tell you to keep your mouth shut, but that doesn't stop you from having your own opinion

Nothing in life is more remarkable than the unnecessary anxiety which we endure, and generally create ourselves.

We must all obey the great law of change. It is the most powerful law of nature.

To forgive is not just to be altruistic.

A life spent making mistakes is not only more honorable, but more useful than a life spent doing nothing.

The more I see, the less I know for sure.

Early in life I had to choose between honest arrogance and hypocritical humility. I chose the former and have seen no reason to change.

Anyone who lives within their means suffers from a lack of imagination.

How wonderful it is that nobody need wait a single moment before starting to improve the world.

Shame is an ornament to the young; a disgrace to the old.

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

Life belongs to the living, and he who lives must be prepared for changes

If people do not believe that mathematics is simple, it is only because they do not realize how complicated life is.