If we examine our thoughts, we shall find them always occupied with
the past or the future. We scarcely think of the present, and if we do
so, it is only that we may borrow light from it to direct the future.
The present is never our end; the past and the present are our means,
the future alone is our end. Thus we never live, but hope to live, and
while we always lay ourselves out to be happy, it is inevitable that
we can never be so.