Immortality
I've put in so many enigmas and puzzles that it will keep the professors busy for centuries arguing over what I meant, and that's the only way of insuring one's immortality.
If your contribution has been vital there will always be somebody to pick up where you left off, and that will be your claim to immortality.
Unable are the loved to die, for love is immortality.
The first requisite for immortality is death.
All spiritual things must have in them a childlike quality. The belief in immortality rests not very much on the hope of going on. Few of us want to do that, but we would like very much to begin again.
One should believe in marriage as in the immortality of the soul.
A graceful and honorable old age is the childhood of immortality.
Parents lend children their experience and a vicarious memory; children endow their parents with a vicarious immortality.