Remember that the time once yours can never be so again. Thomas à Kempis.
Remember that with every breath we draw, an ethereal stream of Lethe runs through our whole being, so that we have but a partial recollection of our joys, and scarcely any of our sorrows. Goethe.
Remember that you are an actor in a drama 5 of such sort as the Author chooses. If short, then in a short one; if long, then in a long one. If it be His pleasure that you should act a poor man, see that you act it well; or a cripple, or a ruler, or a private citizen. For this is your business, to act well the given part; but to choose it, belongs to another. Epictetus.
Remember this: that your conscience is not a law—no; God and reason made the law, and has placed conscience within you to determine. Sterne.
Remember thy prerogative is to govern, and not to serve, the things of this world. Thomas à Kempis.
Remember your failures are the seed of your most glorious successes. Despond if you must, but don't despair. Anon.
Remembrance and reflection how allied! / What thin partitions sense from thought divide! Pope.
Remembrance (Erinnerung) is the only Paradise 10 from which we cannot be driven. Jean Paul.
Remembrance makes the poet; 'tis the past, / Lingering within him with a keener sense / Than is upon the thoughts of common men, / Of what has been, that fills the actual world / With unreal likenesses of lovely shapes, / That were and are not. L. E. Landon.
Remembrance wakes with all her busy train, / Swells at my breast, and turns the past to pain. Goldsmith.