Probable impossibilities are to be preferred to improbable possibilities.
Indeed, man wishes to be happy even when he so lives as to make happiness impossible.
One thing I was thinking about the other day was you can't even conceive of the kinds of things you can do in movies today. The idea that you could draw, in a computer, dinosaurs and have them running around was totally impossible.
When [a politician] is in opposition, he is an expert on the means to some end; and when he is in office he is an expert on the obstacles to it. In short, when he is impotent he proves to us that the thing is easy; and when he is omnipotent he proves that it is impossible.
Illustrated London News (April 6, 1918)
It is impossible to begin to learn that which one thinks one already knows.
All of us failed to match our dreams of perfection. So I rate us on the basis of our splendid failure to do the impossible.
Persistence is what makes the impossible possible, the possible likely, and the likely definite.
Few things are impossible to diligence and skill.
The History of Rasselas, Prince of Abissinia (1759)
Those who make peaceful revolution impossible will make violent revolution inevitable.
All who have accomplished great things have had a great aim, have fixed their gaze on a goal which was high, one which sometimes seemed impossible.
How to Succeed or, Stepping-Stones to Fame and Fortune (1896)
Something which we think is impossible now is not impossible in another decade.
There are no rules and regulations for perfect composition. If there were we would be able to put all the information into a computer and would come out with a masterpiece. We know that's impossible. You have to compose by the seat of your pants.
Most nations,as well as people are impossible only in their youth;they become incorrigible as they grow older
Are you so unobservant as not to have found out that sanity and happiness are an impossible combination?
The Mysterious Stranger (1916)
Only one thing is impossible for God: To find any sense in any copyright law on the planet.
Mark Twain's Notebook (1935)
Basically, perfect development is impossible. Development can be fast, good, and cheap. Pick two.
When there is harmony between the mind, heart and resolution then nothing is impossible.
Only those who attempt the absurd achieve the impossible.