I am never afraid of what I know.

Taken at face value, the line asserts that fear thrives on uncertainty rather than on clear understanding: what is known can be assessed, prepared for, or endured, while the unknown invites imagination to supply worst cases. In a moral register often associated with Sewell’s concerns, it can also be read as a claim about conscience—knowledge (of facts, of right and wrong, of one’s own motives) steadies a person, whereas ignorance and self-deception breed anxiety. The statement thus elevates honest inquiry and clarity as antidotes to dread, implying that courage is partly an intellectual virtue: the willingness to look directly at reality.