Dear Lord, what a madhouse the world is!

Mathematics is the queen of disciplines.... it will drive the nonsense out of your head!

Until you do what you believe in, you don't know whether you believe it or not.

Knowledge is real knowledge only when it is acquired by the efforts of your intellect, not by memory

In order to carry through any undertaking in family life, there must necessarily be either complete division between the husband and wife, or loving agreement. When the relations of a couple are vacillating and neither one thing nor the other, no sort of enterprise can be undertake. Many families remain for years in the same place, though both husband and wife are sick of it, simply because there is neither complete division nor agreement between them.

In our day the feeling of patriotism is an unnatural, irrational, and harmful feeling, and a cause of a great part of the ills from which mankind is suffering, and that, consequently, this feeling - should not be cultivated, as is now being done, but should, on the contrary, be suppressed and eradicated by all means available to rational men.

Without Greek studies there is no education.