Quote by Jean d'Alembert

"Doubt is an uncomfortable condition, but certainty is a ridiculous one."

"The greatest mathematicians, like the greatest poets, are men of imagination."

"I believe in God, but I do not believe that God has any of the properties which theologians ascribe to him."

"The true method of knowledge is experiment."

"Face your fears with courage."

"You can't live your life in fear."

"Snakes. Why'd it have to be snakes?"

"Fear is just another obstacle to overcome."