“I’ve loved the stars too fondly to be fearful of the night.”

All truths are easy to understand once they are discovered; the point is to discover them.

Two truths cannot contradict one another.

I am certainly interested in a tribunal in which, for having used my reason, I was deemed little less than a heretic.

In time you may discover everything that can be discovered, and still your progress will only be progress away from humanity.

That sculpture is more admirable than painting for the reason that it contains relief and painting does not is completely false.

See now the power of truth; the same experiment which at first glance seemed to show one thing, when more carefully examined, assures us of the contrary.

The Divine intellect indeed knows infinitely more propositions.

To be humane, we must ever be ready to pronounce that wise, ingenious and modest statement ‘I do not know’.

Philosophy is written in this grand book, the universe, which stands continually open to our gaze.

To be humane, we must ever be ready to pronounce that wise, ingenious and modest statement ‘I do not know’.

Philosophy is written in this grand book, the universe, which stands continually open to our gaze.

We see only the simple motion of descent, since that other circular one common to the Earth, the tower, and ourselves remains imperceptible.

What greater stupidity can be imagined than that of calling jewels, silver, and gold “precious,” and earth and soil “base”?

I do not know what to say in a case so surprising, so unlooked for and so novel.

I entertain no doubts as to the truth of the transfinites, which I have recognized with God’s help.

The Bible shows the way to go to heaven, not the way the heavens go.

One thing we all need to realize – the fear is in your mind. The fear is what we have created. If we created it, we have the antidote to destroy it!

I won’t touch on risky, because that’s subjective. People are just afraid of things too much. Afraid of things that don’t necessarily merit fear.

The most unfortunate thing that happens to a person who fears failure is that he limits himself by becoming afraid to try anything new.

Any time bombs are used to target civilians it is an act of terror.

I wish to raise a Black man who will recognize that the legitimate objects of his hostility are not women, but the particulars of a structure that programs him to fear and despise women as well as his own Black self.

The greatest fear in the world is of the opinions of others. And the moment you are unafraid of the crowd you are no longer a sheep, you become a lion. A great roar arises in your heart, the roar of freedom.

We let the fear of discovery stop us from doing what is right.

I was bold in the pursuit of knowledge, never fearing to follow truth and reason to whatever results they led.