Heaven knows what seeming nonsense may not tomorrow be demonstrated truth.

Algebra reverses the relative importance of the factors in ordinary language.

Seek simplicity but distrust it.

It belongs to the self-respect of intellect to pursue every tangle of thought to its final unravelment.

It is natural to think that an abstract science cannot be of much importance in affairs of human life, because it has omitted from its consideration everything of real interest.

The art of progress is to preserve order amid change, and to preserve change amid order. Life refuses to be embalmed alive. The more prolonged the halt in some unrelieved system of order, the greater the crash of the dead society.

You cannot be wise without some basis of knowledge, but you may easily acquire knowledge and remain bare of wisdom.