Authors:

While there is a chance of the world getting through its troubles, I hold that a reasonable man has to behave as though he were sure of it. If at the end your cheerfulness in not justified, at any rate you will have been cheerful.

H. G. Wells (2017). “Apropos of Dolores by H. G. Wells (Illustrated)”, p.36, Delphi Classics (Parts Edition) (PublishDrive)
While there is a chance of the world getting through its troubles, I hold that a reasonable man has to behave as though he were sure of it. If at the end your cheerfulness in not justified, at any rate you will have