The gems of philosophy are not less precious because they are not understood.

I beg you, reject antiquity, tradition, faith, and authority! Let us begin anew by doubting everything we assume has been proven!

I don't care if 1 is prime or not, if 2 is prime or not, if 3 is prime or not. All I care is that there are more stars in the heavens than primes in the earth.

The beginning, middle, and end of the birth, growth, and perfection of whatever we behold is from contraries, by contraries, and to contraries; and whatever contrariety is, there is action and reaction, there is motion, diversity, multitude, and order, there are degrees, succession and vicissitude.

I do not know when, but I know that many have come in this century to develop arts and sciences, sow the seeds of a new culture that will flourish, unexpected, sudden, just when the power is deluded into believing they have won.

Magicians can do more by means of faith than physicians by the truth.

That which we have lived is nothing; that which we live is a point; that which we have to live is not yet a point, but may be a point which, together, shall be and shall have been.