If you tried to doubt everything you would not get as far as doubting anything. The game of doubting itself presupposes certainty.
doubtquotes
But doubt is wily and cunning and never, as it is sometimes said to be, loud or defiant. It is unassuming and sly, not bold or assertive – and the more unassuming, the more dangerous.
Every mental act is composed of doubt and belief, but it is belief that is the positive, it is belief that sustains thought and holds the world together.
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.
