(adjective) Healthy. Example: "He was safe and sound."
"Heard the bullets whistle, and, believe me, there is something charming in the sound."
"We all know that light travels faster than sound. That's why certain people appear bright until you hear them speak."
"An empty vessel makes the loudest sound, so they that have the least wit are the greatest babblers."
"A young man who wishes to remain a sound atheist cannot be too careful of his reading."
"His laugh sounds an awful lot like my happiness."
"He fell as gently as a tree falls. There was not even any sound."
"Be extremely subtle even to the point of formlessness. Be extremely mysterious even to the point of soundlessness. Thereby you can be the director of the opponent's fate."
"A system of morality which is based on relative emotional values is a mere illusion, a thoroughly vulgar conception which has nothing sound in it and nothing true."
"The man that hath no music in himself, Nor is not moved with concord of sweet sounds, is fit for treasons, stratagems and spoils."
"Lightning makes no sound until it strikes."
"The object of art is to intensify feeling, color or sound."