An atom-blaster is a good weapon, but it can point both ways.

There is an art to science, and a science in art; the two are not enemies, but different aspects of the whole.

The greatest weapons in the conquest of knowledge are an understanding mind and the inexorable curiosity that drives it on.

Part of the inhumanity of the computer is that, once it is competently programmed and working smoothly, it is completely honest.

Night will always be a time of fear and insecurity, and the heart will sink with the sun.

Boasts are wind and deeds are hard.

Knowledge is indivisible. When people grow wise in one direction, they are sure to make it easier for themselves to grow wise in other directions as well. On the other hand, when they split up knowledge, concentrate on their own field, and scorn and ignore other fields, they grow less wise - even in their own field.