So many of our dreams at first seem impossible, then they seem improbable, and then, when we summon the will, they soon become inevitable.
— Christopher Reeve
Between the great things we cannot do and the small things we will not do, the danger is that we shall do nothing.
— Adolph Monod
Man is not the sum of what he has already, but rather the sum of what he does not yet have, of what he could have.
— Jean-paul Sartre