To suppose, as we all suppose, that we could be rich and not behave as the rich behave, is like supposing that we could drink all day and keep absolutely sober. - Logan Pearsall Smith
If all was told, supposing there lived a person who could tell all, there would be no mysteries left, and the would be very bad. Man cannot live without mystery. He had a great need of it. - Lame Deer Seeker of Visions
We live our lives supposing things are as they appear to be when that is almost never the case. - Richelle E. Goodrich
Mankind have a great aversion to intellectual labor; but even supposing knowledge to be easily attainable, more people would be content to be ignorant than would take even a little trouble to acquire it. - Samuel Johnson
Supposing is good, but finding out is better. - Mark Twain
It is undesirable to believe a proposition when there is no ground whatsoever for supposing it is true. - Bertrand Russell