I have been driven many times to my knees by the overwhelming conviction that I had nowhere to go. My own wisdom, and that of all about me, seemed insufficient for the day.
— Abraham Lincoln

The temptation to form premature theories upon insufficient data is the bane of our profession.
Arthur Conan Doyle insufficiency quote

Life is the art of drawing sufficient conclusions from insufficient premises.
— Samuel Butler

It is wrong always, everywhere, and for everyone, to believe anything upon insufficient evidence.
— William James

I believe that present day civilized man suffers from insufficient discharge of his aggressive drive.
— insufficiency quotation by Konrad Lorenz