Doubt Quotes

4294 quotes by 2797 authors

Man, no doubt, owes many other moral duties to his fellow men; such as to feed the hungry, clothe the naked, shelter the homeless, care… — Lysander Spooner
After Gibbs, one the most distinguished [American scientists] was Langley, of the Smithsonian. ... He had the physicist's heinous fault of professing to know nothing… — Henry Adams
I am convinced that it is impossible to expound the methods of induction in a sound manner, without resting them upon the theory of probability.… — William Stanley Jevons
Scientific knowledge advances haltingly and is stimulated by contention and doubt. — Claude Levi-Strauss
Modern science is necessarily a double-edged tool, a tool that cuts both ways. ... There is no doubt that a Zeppelin is a wonderful thing;… — Gilbert K. Chesterton
Science is the outcome of being prepared to live without certainty and therefore a mark of maturity. It embraces doubt and loose ends. — A.C. Grayling
Modern masters of science are much impressed with the need of beginning all inquiry with a fact. The ancient masters of religion were quite equally… — Gilbert K. Chesterton
It has sometimes been said that the success of the Origin proved "that the subject was in the air," or "that men's minds were prepared… — Charles Darwin
It is odd that neither the Church nor modern public opinion condemns petting, provided it stops short at a certain point. At what point sin… — Bertrand Russell
He would be guilty of mortal sin, because he exposes himself to the danger of grievously offending God. Hence, before he acts he must lay… — Alphonsus Liguori
Truth is something that we can attempt to doubt, and then perhaps, after much exertion, discover that part of the doubt is not justified. — Niels Bohr
[I]f in other sciences we should arrive at certainty without doubt and truth without error, it behooves us to place the foundations of knowledge in… — Roger Bacon
The doubter is a true man of science: he doubts only himself and his interpretations, but he believes in science. — Claude Bernard
The great experimental principle, then, is doubt, that philosophic doubt which leaves to the mind its freedom and initiative, and from which the virtues most… — Claude Bernard
There is no permanence in doubt; it incites the mind to closer inquiry and experiment, from which, if rightly managed, certainty proceeds, and in this… — Johann Wolfgang von Goethe
After all the field of battle possesses many advantages over the drawing-room. There at least is no room for pretension or excessive ceremony, no shaking… — Henry David Thoreau
Let no one hope to find in contemplation an escape from conflict, from anguish or from doubt. On the contrary, the deep inexpressible certitude of… — Thomas Merton
The fact that the Catholic Church has come to an agreement with Fascist Italy ... proves beyond doubt that the Fascist world of ideas is… — Adolf Hitler
You hate me because I am the embodiment of all your doubts. — Madalyn Murray O'Hair
There is not a single contemporary historical mention of Jesus, not by Romans or by Jews, not by believers or by unbelievers, during his entire… — Dan Barker

Who Wrote These Doubt Quotes

2,797 authors contributed a total of 4,294 Doubt Quotes, led by these top contributors: