No Christian can be a pessimist, for Christianity is a system of radical optimism.
William Ralph Inge
I don't think you lead by pessimism and cynicism. I think you lead by optimism and enthusiasm and energy.
Patricia Ireland
The dreams of the 1960s began to disappear in the 1970s. The economy collapsed, and so did the optimism of the Metabolists.
Toyo Ito
Pessimism leads to weakness, optimism to power.
William James
Regardless of who wins, an election should be a time for optimism and fresh approaches.
Gary Johnson
I'm cheerfully optimistic about life. Optimism is very important!
Terry Jones
What I am against is false optimism: the notion either that things have to go well, or else that they tend to, or else that the default condition of... →
Tony Judt
Optimism is normal, but some fortunate people are more optimistic than the rest of us. If you are genetically endowed with an optimistic bias, you... →
Daniel Kahneman
Organizations may be better able to tame optimism than individuals are.
My view is that at a younger age your optimism is more and you have more imagination etc. You have less bias.
A. P. J. Abdul Kalam