It is true that intuition has a convincingness which is lacking to intellect: while it is present, it is almost impossible to doubt its truth.
"Mysticism and Logic and Other Essays"
Bertrand Russell
One hopes, for a time, that Margaret herself will save the situation: but she goes off instead of coming on, and has rather less individuality and convincingness at the end of the story than at the beginning.
"The English Novel"
George Saintsbury
And by that time, perhaps, I can express my regret to you, for things done and things left undone, with more convincingness.
"Jewel A Chapter In Her Life"
Clara Louise Burnham