Quotes To Live By (page 193)
To attain something desired is to discover how vain it is; and…though we live all our lives in expectation of better things, we often at the same time long regretfully for what is past. The present, on the other hand, is regarded as something quite temporary and serving only as the road to our goal. That is why most men discover when they look back on their life that they have the whole time been living ad interim, and are surprised to see that which they let go by so unregarded and unenjoyed...
Arthur Schopenhauer
Living in the present moment means living according to truth and principle (but not according to hard rigid dogma) flexibly applied in the particular way required by the immediate situation in which you are. Such a way of living leaves you free, not ruled tyrannically by imposed regulations which may not at all suit the particular case.
Paul Brunton
Live a good life. If there are gods and they are just, then they will not care how devout you have been, but will welcome you based on the virtues you have lived by. If there are gods, but unjust, then you should not want to worship them. If there are no gods, then you will be gone, but will have lived a noble life that will live on in the memories of your loved ones.
Marcus Aurelius