Although mechanical energy is indestructible, there is a universal tendency to its dissipation, which produces throughout the system a gradual augmentation and diffusion of heat, cessation of motion and exhaustion of the potential energy of the material Universe

Heavier-than-air flying machines are impossible.

The more thoroughly I conduct scientific research, the more I believe that science excludes atheism.

I believe that the more thoroughly science is studied, the further does it take us from anything comparable to atheism.

Fourier is a mathematical poem.

I have not had a moment's peace or happiness in respect to electromagnetic theory since November 28, 1846. All this time I have been liable to fits of ether dipsomania, kept away at intervals only by rigorous abstention from thought on the subject.

When you cannot measure, your knowledge is meager and unsatisfactory.