There is a technique, a knack, for thinking, just as there is for doing other things. You are not wholly at the mercy of your thoughts, any more than they are you. They are a machine you can learn to operate.
It is more important that a proposition be interesting than that it be true. This statement is almost a tautology. For the energy of operation of a proposition in an occasion of experience is its interest and is its importance. But of course a true proposition is more apt to be interesting than a false one.
Alfred Whitehead (1861 - 1947)
Source: W.H. Auden and L. Kronenberger The Viking Book of Aphorisms, New York: Viking Press, 1966.