When one door closes another door opens; but we so often look so long and so regretfully upon the closed door, that we do not see the ones which open for us.

- Alexander Graham Bell

Regret for wasted time is more wasted time.

- Mason Cooley

A man is not old until regrets take the place of dreams.

- John Barrymore

One regret dear world, that I am determined not to have when I am lying on my deathbed is that I did not kiss you enough.

- Hafiz of Persia

Do not be afraid of the past. If people tell you that it is irrevocable, do not believe them.

- Oscar Wilde

Regret for the things we did can be tempered by time; it is regret for the things we did not do that is inconsolable.

- Sydney J. Harris

Speak when you are angry -- and you'll make the best speech you'll ever regret.

- Laurence J. Peter

The bitterest tears shed over graves are for words left unsaid and deeds left undone.

- Harriet Beecher Stowe

Make the most of your regrets. . . . To regret deeply is to live afresh. Journal

- Henry David Thoreau

Fear not for the future, weep not for the past.

- Percy Bysshe Shelley

Regret is an appalling waste of energy; you can't build on it; it is only good for wallowing in.

- Katherine Mansfield

Make it a rule of life never to regret and never to look back. Regret is an appalling waste of energy; you can't build on it; it's only for wallowing in.

- Katherine Mansfield