When the number of factors coming into play in a phenomenological complex is too large scientific method in most cases fails. One need only think of the weather, in which case the prediction even for a few days ahead is impossible.

Freedom of teaching and of opinion in book or press is the foundation for the sound and natural development of any people.

Strenuous intellectual work and the study of God's Nature are the angels that will lead me through all the troubles of this life with consolation, strength, and uncompromising rigor.

We must dedicate our lives to drying up the source of war: ammunition factories.

Politics is more difficult than physics.

The economic anarchy of capitalist society as it exists today is, in my opinion, the real source of evil.

In scientific thinking are always present elements of poetry. Science and music requires a thought homogeneous.