The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.

„Marea problemă cu lumea este că proștii și fanaticii sunt întotdeauna foarte siguri pe ei, în timp ce oamenii mai înțelepți, sunt plini de dubii.

In the visible world, the Milky Way is a tiny fragment; within this fragment, the solar system is an infinitesimal speck, and of this speck our planet is a microscopic dot. On this dot, tiny lumps of impure carbon and water, of complicated structure, with somewhat unusual physical and chemical properties, crawl about for a few years, until they are dissolved again into the elements of which they are compounded.

A priori Logical propositions are such as can be known a priori without study of the actual world.

Frege has the merit of ... finding a third assertion by recognising the world of logic which is neither mental nor physical.

One of the main causes of trouble in the world is dogmatic and fanatical belief in some doctrine for which there is no adequate evidence

Fanaticism is the danger of the world, and always has been, and has done untold harm. I might almost say that I was fanatical against fanaticism.

A world without delight and without affection is a world destitute of value.