If a problem is too difficult to solve, one cannot claim that it is solved by pointing at all the efforts made to solve it.

If a problem is too difficult to solve, one cannot claim that it is solved by pointing at all the efforts made to solve it.

Most people today still believe, perhaps unconsciously, in the heliocentric universe. Every newspaper in the land has a section on astrology, yet few have anything at all on astronomy.

I have no trouble publishing in Soviet astrophysical journals, but my work is unacceptable to the American astrophysical journals.

The technologists claim that if everything works [in a nuclear fission reactor] according to their blueprints, fission energy will be a safe and very attractive solution to the energy needs of the world. ... The real issue is whether their blueprints will work in the real world and not only in a "technological paradise."... Opponents of fission energy point out a number of differences between the real world and the "technological paradise." ... No acts of God can be permitted.

I have always believed that astrophysics should be the extrapolation of laboratory physics, that we must begin from the present universe and work our way backward to progressively more remote and uncertain epochs.

Gravitational systems are the ashes of prior electrical systems.