Enjoy present pleasures in such a way as...

Enjoy present pleasures in such a way as not to injure future ones.
Every year of my life I grow more convinced that it is wisest and best to fix our attention on the beautiful and good, and dwell as little as possible on the dark and base. - Cecil.
Recollection is the only paradise from which we cannot be turned out. - Richter.
We may neglect the wrongs which we receive, but be careful to rectify those which we are the cause of to others. - Dewey.
If our past actions reproach us, they cannot be atoned for by our own severe reflections so effectually as by a contrary behavior. - Steele.