Perception is not truth.
When someone decides that truth is the ultimate achievement of man; then science, reality, or perception, is not enough. One needs to be patient.
History is a graveyard of brilliant minds who relished in their discovery of truth in their time. (Copernicus, Galileo, and even Einstein) Only to be succeeded by the next brilliance who had the luxury of more experience on the base of multiple sources of evidence.
What humbleness allows is forgiveness. If there is a 'fact' found, a humble person will describe it, test it, accept opinions. And allow criticism.
Truth is continually a distant artifact.
Evidence and the relentless collection of evidence brings us closes to a truth. Our generation is only a fact gathering piece that brings more truth to the collective that is humanity.
No politician, no priest, no scientist should ever commit to knowing truth. The most honourable commitment is in the continual attempt of discovery of evidence to prove a fact.