Today’s scientists have substituted mathematics for experiments, and they wander off through equation after equation, and eventually build a structure which has no relation to reality.
The scientific man does not aim at an immediate result. He does not expect that his advanced ideas will be readily taken up. His work is like that of the planter — for the future. His duty is to lay the foundation for those who are to come, and point the way. He lives and labors and hopes.
The poets and philosophers before me discovered the unconscious; what I discovered was the scientific method by which the unconscious can be studied.
The first gulp from the glass of natural sciences will turn you into an atheist, but at the bottom of the glass God is waiting for you.
Science knows no country, because knowledge belongs to humanity, and is the torch which illuminates the world.
In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual.
I am utterly convinced that Science and Peace will triumph over Ignorance and War, that nations will eventually unite not to destroy but to edify, and that the future will belong to those who have done the most for the sake of suffering humanity.