But down deep, at the molecular heart of life we're essentially identical to trees.

Somewhere, something incredible is waiting to be known.

It is far better to grasp the universe as it really is than to persist in delusion, however satisfying and reassuring.

The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff.

Imagination will often carry us to worlds that never were. But without it we go nowhere.

I don't want to believe. I want to know.

The absence of evidence is not the evidence of absence.

The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.

We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology.

For small creatures such as we the vastness is bearable only through love.

You have to know the past to understand the present.

The most intense patriotism always flourishes in the rear.

Wherever any precept of traditional morality is simply challenged to produce its credentials, as though the burden of proof lay on it, we have taken the wrong position.

The real truth of the matter is, as you and I know, that a financial element in the larger centers has owned the Government ever since the days of Andrew Jackson...

Through meditation, you can calm the mind and develop what is important to you.

All genius is simple. It involves close observation and a momentous act of self trust.

The deepest level of truth uncovered by science, & by philosophy, is the fundamental truth of unity. At that deepest subnuclear level of our reality, you & i are literally one.

It is pleasant, when the sea runs high, to view from land the great distress of another.

The forests of Russia and Brazil are the lungs of the Earth.

None are so poor that they have nothing to give...and none are so rich that they have nothing to receive.

Oh, she doth teach the torches to burn bright!