Heber J. Grant

A story. From here:

http://www.ldsces.org/inst_manuals/pres-sm/pres-ch-07-09.htm

“At the lunch table after my first short speech which lasted seven and a half minutes, President Smith said: ‘Heber, you said you believe the gospel with all your heart, and propose to live it, but you did not bear your testimony that you know it is true. Don’t you know absolutely that this gospel is true?’

“I answered: ‘I do not.’

“‘What, you! a president of a stake?’ said President Joseph F. Smith.

“‘That is what I said.’

“‘President [John] Taylor, I am in favor of undoing this afternoon what we did this morning. I do not think any man should preside over a stake who has not a perfect and abiding knowledge of the divinity of this work.’

“I said: ‘I am not going to complain.’

“Brother Taylor had a habit, when something pleased him excessively, of shaking his body and laughing. He said, ‘Joseph, Joseph, Joseph, he knows it just as well as you do. The only thing that he does not know is that he does know it. It will be but a short time until he does know it. He leans over backwards. You do not need to worry.’