The truth is on the march and nothing will stop it.

I believe that the future of humanity is in the progress of reason through science. I believe that the pursuit of truth, through science, is the divine ideal which man should propose to himself.

If I cannot overwhelm with my quality, I will overwhelm with my quantity.

In my view you cannot claim to have seen something until you have photographed it.

I believe that all is illusion and vanity outside the treasure of truths slowly accumulated, and which will never again be lost. I believe that the sum of these truths, always increasing, will at last confer on man incalculable power and peace, if not happiness. Yes, I believe in the final triumph of life.

If you shut up truth and bury it under the ground, it will but grow up, and gather to itself such explosive power that the day it bursts through it will blow up everything in its way.