The physical laws, in their observable consequences, have a finite limit of precision.

The more I think about language, the more it amazes me that people ever understand each other at all.

Either mathematics is too big for the human mind or the human mind is more than a machine.

Ninety percent of [contemporary philosophers] see their principle task as that of beating religion out of men's heads. ... We are far from being able to provide scientific basis for the theological world view.

...a consistency proof for [any] system ... can be carried out only by means of modes of inference that are not formalized in the system ... itself.

The meaning of world is the separation of wish and fact.

All generalisations - perhaps except this one - are false.