“Ignorance was just as dynamic as knowledge, and it grew in the same proportion.”

“Or to think that before Pasteur's discovery of microbes, doctors fought duels over the merits of balsam of Peru vs. tar oil for wound infection. Ignorance was just as dynamic as knowledge, and it grew in the same proportion. Still, each generation of physicians imagined that ignorance was the special provenance of their elders.”

“...to think that before Pasteur's discovery of microbes, doctors fought duels over the merits of balsam of Peru versus tar oil for wound infection. Ignorance was just as dynamic as knowledge, and it grew in the same proportion. Still, each generation of physicians imagined that ignorance was the special provenance of their elders.”

“All political theories assume, of course, that most individuals are very ignorant. Those who plead for liberty differ from the rest in that they include among the ignorant themselves as well as the wisest. Compared with the totality of knowledge which is continually utilized in the evolution of a dynamic civilization, the difference between the knowledge that the wisest and that the most ignorant individual can deliberately employ is comparatively insignificant.”

“We fear things in proportion to our ignorance of them.”

“Wisdom tends to grow in proportion to one's awareness of one's ignorance.”