The average voter has to hear a point seven times before it registers.
Those who have had anything useful to say have said it far too often, and those who have had nothing to say have been no more reticent.
One comes to believe whatever one repeats to oneself sufficiently often, whether the statement be true of false. It comes to be dominating thought in one's mind.
I haven't made a political statement in quite a long time because, frankly, they get repeated, changed.
The same ideas, one must believe, recur in men's minds not once or twice but again and again.
If you write songs long enough, you run out of material that's original to yourself.
It is not once nor twice but times without number that the same ideas make their appearance in the world.
There is nothing worth thinking but it has been thought before; we must only try to think it again.
All truly wise thoughts have been thought already thousands of times; but to make them truly ours, we must think them over again honestly, until they take root in our personal experience.