In silence man can most readily preserve his integrity.

Read in light of Eckhart’s apophatic ("negative") mysticism, the saying treats silence not as mere muteness but as an inner stillness that guards the self from dispersion. Speech, argument, and self-assertion can pull a person outward—into vanity, defensiveness, or compromise—whereas silence makes room for recollection and truthfulness. “Integrity” here suggests wholeness: being undivided, aligned with the highest good, and less vulnerable to social pressures or reactive emotion. The line also implies an ethical discipline: restraint of tongue becomes restraint of ego, allowing one to act from a centered, purified intention rather than from impulse or the need to win approval.