There is no question climate change is happening. The only arguable point is what part humans are playing in it.

All differences in this world are of degree, and not of kind, because oneness is the secret of everything.

In moments of great grief, that’s where you look and immerse yourself. You realise you are not immortal, you are not a god, you are part of the natural world and you come to accept that.

To kill an error is as good a service as, and sometimes even better than, the establishing of a new truth or fact

You can be rich in spirit, kindness, love and all those things that you can't put a dollar sign on.

If you have no problems, then you have no clue to what is going.

A perfection of means, and confusion of aims, seems to be our main problem.

I mistrust the judgement of every man in a case in which his own wishes are concerned.

Only idiots refuse to change their minds.

The pendulum of the mind oscillates between sense and nonsense, not between right and wrong.

It is neither good nor bad, but thinking makes it so.

He who is cruel to animals becomes hard also in his dealings with men. We can judge the heart of a man by his treatment of animals.

Respect yourself if you would have others respect you.

Science may set limits to knowledge, but should not set limits to imagination.

It was a melancholy secret that reality can arouse desires but never satisfy them.

Knowing yourself is the beginning of all wisdom.

Judge not unless you judge yourself.

Most of us have far more courage than we ever dreamed possible

There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self.

It seems essential, in relationships and all tasks, that we concentrate only on what is most significant and important.

If you're happy, don't worry you'll get over it.