Lust for the future, treasure the past.

You cannot dwell on the past. You have to focus on the future.

The uncertainty and importance of the present reduce the past and future to comparative insignificance, and clear the mind of minor worries. And when all is over, memories remain which few men do not hold precious.

Amid the vastness of the things among which we live, the existence of nothingness holds the first place; its function extends over all things that have no existence, and its essence, as regards time, lies precisely between the past and the future, and has nothing in the present.

I try to learn from the past, but I plan for the future by focusing exclusively on the present. That's where the fun is.

The future is unknowable, but the past should give us hope.