Other things being equal, it is better to be smart than to be stupid.

Except in pure mathematics, nothing is known for certain (although much is certainly false).

Human history can be viewed as a slowly dawning awareness that we are members of a larger group.

Science is an attempt, largely successful, to understand the world, to get a grip on things, to get hold of ourselves, to steer a safe course. Microbiology and meteorology now explain what only a few centuries ago was considered sufficient cause to burn women to death.

Except for fools and madmen, everyone knows that nuclear war would he an unprecedented human catastrophe.

There is every reason to think that in the coming years Mars and its mysteries will become increasingly familiar to the inhabitants of the Planet Earth.

Books are key to understanding the world and participating in a democratic society.