When all experts agree, you need to watch 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.

To bring peace to this beautiful home we call Earth, let us all sing a song of love.

You think you’re defending my ‘honor, ’ but you’re just as bad as he is.

A clever arrangement of bad eggs will never make a good omelet.

You go through things sometimes that make you aware of the really good things in life.

Not to this extent but from day one I had an awful lot of confidence when I got started.

I need someone who understands an artist's mentality. I couldn't be with someone who wouldn't let me have my freedom.

Taking experimental results and observations for granted and putting the burden of proof on the theory means taking the observational ideology for granted without having ever examined it.

Take this at least, this last advice, my son: Keep a stiff rein, and move but gently on: The coursers of themselves will run too fast, Your art must be to moderate their haste.

You can split atoms, but you can't split true love.

A gentleman is someone who can play the accordion, but doesn't.