Most nations, as well as people are impossible only in their youth; they become incorrigible as they grow older.

We are all faced with a series of great opportunities brilliantly disguised as impossible situations.

I have learned to use the word impossible with the greatest caution. – Wernher von Braun

Faith, mighty faith, the promise sees, And looks to God alone; Laughs at impossibilities, And cries it shall be done. – Charles Wesley

So many of our dreams at first seems impossible, then they seem improbable, and then, when we summon the will, they soon become inevitable. – Christopher Reeve

Accomplishing the impossible means only that the boss will add it to your regular duties. – Doug Larson