Conceived Notion Quotes by Hal Hellman

A fervently believed idea, even if wrong, dies hard.

— Hal Hellman

Disputes among natural philosophers are of use to science, as the quarrels of the great, and the clamors of the little, are necessary to…

— Hal Hellman

One sees what one wants to see when there is in mind a pre-conceived notion.

— Hal Hellman