Hal Hellman Quotes

Enjoy the top 3 famous quotes, sayings and quotations by Hal Hellman.

Hal Hellman Quotes

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

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

— 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 freedom of thought and the advancement of learning.

— Hal Hellman

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