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

Do not imagine that mathematics is hard and crabbed, and repulsive to common sense. It is merely the etherealization of common sense.

The vortex theory [of the atom] is only a dream. Itself unproven, it can prove nothing, and any speculations founded upon it are mere dreams about dreams.

If you cannot measure it, then it is not science.

To live among friends is the primary essential of happiness.

Simplification of modes of proof is not merely an indication of advance in our knowledge of a subject, but is also the surest guarantee of readiness for farther progress.

Large increases in cost with questionable increases in performance can be tolerated only in race horses and fancy women.