2,035 Quotes About Doubt

The truth alone has never set anyone free. It is only doubt which will bring mental emancipation. Without the wonderful element of doubt, the doorway through which truth passes would be tightly shut, impervious to the most strenuous poundings of a thousand Lucifers.

The only defeat is doubt.

Without doubt, there is no defeat.

I see reverence and doubt not as ends of a seesaw but more like spaces on a coil that rotates in continuum.

Doubt is two opposing certainties.

لاحظ فيورباخ إذا كنا قد أحسسنا بالإلهي على طول الخط وتبين عدم وجود إله، فما ندعوه بالإلهي أتى منا نحن في المقام الأول.

I trust my nose, ears, eyes. But my brain…

Science is based on nothing other than what-ifs, and skepticism with regard to the preconceived notions that make up the material world.

Here in America, the only words that didn’t exist, the only unspeakable words, were “I’m not sure about any of this. I’m having second thoughts.