There is not, and never has been, a human being who was capable of thinking straight, except by checking his thoughts against objective experience.


Of Men and Galaxies, Motives and Aims of the Scientist (p. 16)


There is not, and never has been, a human being who was capable of thinking straight, except by checking his thoughts against objective experience.

There is not, and never has been, a human being who was capable of thinking straight, except by checking his thoughts against objective experience.

There is not, and never has been, a human being who was capable of thinking straight, except by checking his thoughts against objective experience.

There is not, and never has been, a human being who was capable of thinking straight, except by checking his thoughts against objective experience.