It is in our hearts that evil lies, and it is from our hearts that it must be plucked out.

The good life is one inspired by love and guided by knowledge.

The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts.

The time you enjoy wasting is not wasted time.

Fear is the main source of superstition, and one of the main sources of cruelty. To conquer fear is the beginning of wisdom.

Men are born ignorant, not stupid. They are made stupid by education.

An Honest politician will not be tolerated by a democracy unless he is very stupid ... because only a very stupid man can honestly share the prejudices of more than half the nation.

If there were in the world today any large number of people who desired their own happiness more than they desired the unhappiness of others, we could have a paradise in a few years.

We have in fact, two kinds of morality, side by side: one which we preach, but do not practice, and another which we practice, but seldom preach.

The fact that an opinion has been widely held is no evidence whatever that it is not utterly absurd.

Cruel men believe in a cruel god and use their belief to excuse their cruelty. Only kindly men believe in a kindly god, and they would be kindly in any case.

The godly shall pray to God.

In spite of what most assume, it is surprisingly tough to make the mind and body work together as a unit.

We persist and linger longer than we think, leaving traces of ourselves wherever we go. If you take that away, then we all simply vanish.

It feels great to recall great times.

If God thinks this state of war in the universe a price worth paying for free will...then we may take it it is worth paying.

Reaching for the stars, perfectionists may end up clutching air. They suffer from mood disorders, troubled relationships, and stress. They may even achieve less than others.

Why do we serve? When we understand why, we won't be concerned about where we serve.

Businesses are not paid to reform customers. They are paid to satisfy customers.

What the tongue has promised, the body must submit to.

I've got a couple of things over [ Wladimir Klitschko]: He wouldn't spar with me when I went to the camp and I beat him in a mental toughness competition in the sauna.