Bertrand Russell on Happy Men and Women

A man who has once perceived, however, temporarily and however briefly, what makes greatness of spirit, can no longer be happy if he allows himself to be petty, self-seeking, troubled by trivial misfortunes, dreading what fate may have in store for him. A man capable of greatness of spirit will open wide the windows of his mind, letting the winds blow freely upon it from every portion of the universe. He will see himself and life and the world as truly as our human limitations will permit; realizing the brevity and minuteness of human life, he will realize also that in individual minds is concentrated whatever of value the known universe contains. And he will see that the man whose mind mirrors the world becomes in a sense as great as the world, In emancipation from the fears that beset the slave of circumstance he will experience a profound joy, and through all the vicissitudes of his outward life he will remain in the depths of being a happy man. Poch Suzara