People are generally better persuaded by the reasons which they have themselves discovered than by those which have come into the mind of others.

Presented long before Cialdini’s Influence, where swaying mind wasn’t a mainstream profession yet, Pascal (the man, not the language) summed up the act of persuasion like a poetic dance move.

Eloquence is a painting of thought; and thus those who, after having painted it, add something more, make a picture instead of a portrait.

Link