It is no sin to doubt some things but it may be fatal to believe everything. — Aiden Wilson Tozer Copy Share Image
Some, merely to contradict what I had said, did not scruple to cast doubt upon things they had seen with their own… — Galileo Galilei Copy Share Image
I might as well doubt of my own being, as of the being of those things I actually see and feel. — George Berkeley Copy Share Image
Let go the things of which you are in doubt for the things in which there is no doubt. — Nazr Mohammed Copy Share Image
The mathematician knows some things, no doubt, but not those things one usually wants to get from him. — Albert Einstein Copy Share Image
Of course in science there are things that are open to doubt and things need to be discussed. But among the things… — Richard Dawkins Copy Share Image
We must doubt the certainty of everything which passes through the senses, but how much more ought we to doubt things contrary… — Leonardo da Vinci Copy Share Image
“Theres a process of self doubt when things go wrong. Whether or not its personal or a friend in trouble, looking at… — Adam Mickley Wood Copy Share Image
“To me it seems that those sciences are vain and full of error which are not born of experience, mother of all… — Leonardo da Vinci Copy Share Image
