Ursula K. Le Guin said this quote

Hope is a slighter, tougher thing even than trust, he thought, pacing his room as the soundless, vague lightning flashed overhead. In a good season one trusts life; in a bad season one only hopes, But they are of the same essence: they are the mind's indispensable relationship with other minds, with the world, and with time. Without trust, a man lives, but not a human life; without hope, he dies. When there is no relationship, where hands do not touch, emotion atrophies in void and intelligence goes sterile and obsessed. Between men the only link left is that of owner to slave, or murderer to victim.