Scientific progress on a broad front results from the free play of free intellects, working on subjects of their own choice, in the manner dictated by their curiosity for exploration of the unknown.

Science has a simple faith, which transcends utility... It is the faith that it is the privilege of man to learn to understand, and that this is his mission.

A record, if it is to be useful to science, must be continuously extended, it must be stored, and above all it must be consulted.

The question of whether a device will come into being depends upon three things: first, whether there is a practical use for it that warrants its development and manufacturing costs; second, whether the laws of physics applying to the elements available for its design allow the attainment of the needed ranges, sensitivities, or the like; and third, whether the pertinent art of manufacture has advanced sufficiently to allow a useful embodiment to be built successfully.

There will always be plenty of things to compute in the detailed affairs of millions of people doing complicated things.

A belief may be larger than a fact. A faith that is overdefined is the very faith most likely to prove inadequate to the great moments of life.

The camera hound of the future wears on his forehead a lump a little larger than a walnut.