"The grand perhaps! We look on helplessly, there the old misgivings, crooked questions are" — Robert Browning

There is no more miserable human being than one in whom nothing is habitual but indecision.

Source: Psychology: Briefer Course (1892)

The moment you doubt whether you can fly, you cease for ever to be able to do it.

Source: Peter Pan (1911)

Our faith is faith in someone else's faith, and in the greatest matters this is most the case.

Faith means belief in something concerning which doubt is theoretically possible

Doubt is a pain too lonely to know that faith is his twin brother

Anyone can be a millionaire, but to become a billionaire you need an astrologer.

Robert Browning Quote