Quotes on Doubt

Doubt and fear are the great enemies of knowledge.James Allen

• fear
• knowledge
• doubt

This is the source.

Having conceived of his purpose, a man should mentally mark out a straight pathway to its achievement, looking neither to the right nor the left. Doubts and fears should be rigorously excluded; they are disintegrating elements which break up the straight line of effort, rendering it crooked, ineffectual, useless. Thoughts of doubt and fear never accomplish anything, and never can. They always lead to failure. Purpose, energy, power to do, and all strong thoughts cease when doubt and fear creep in.James Allen

• purpose
• fear
• goals
• thought
• achievement
• accomplishment
• doubt

This is the source.

The will to do springs from the knowledge that we can do. Doubt and fear are the great enemies of knowledge, and he who encourages them, who does not slay them, thwarts himself at every step.James Allen

• will
• fear
• doubt

This is the source.

Doubters do not achieve; skeptics do not contribute; cynics do not create. Faith is the great motive power, and no man realizes his full possibilities unless he has the deep conviction that life is eternally important, and that his work, well done, is a part of an unending plan.Calvin Coolidge

• purpose
• faith
• doubt

The men who build the future are those who know that greater things are yet to come, and that they themselves will help bring them about. Their minds are illuminated by the blazing sun of hope. They never stop to doubt. They haven't time.Melvin Evans

• ambition
• doubt

If you would be a real seeker after truth, it is necessary that at least once in your life you doubt, as far as possible, all things.Rene Descartes

• philosophy
• doubt

In all affairs it's a healthy thing now and then to hang a question mark on the things you have long taken for granted.Bertrand Russell

• doubt

The two major obstacles to success and achievement are fear and doubt.Brian Tracy

• fear
• success
• doubt

Have you ever seen a negative baby? Children come into the world with no doubts or fears at all. And whatever has been learned can be unlearned through practice and repetition.Brian Tracy

• fear
• affirmations
• doubt