Definitions: (1) carefully observant; vigilant; attentive <especially with parental care>; cautious; diligent; awake; aware; (2) guarding against danger; (3) alert to opportunity; (4) mentally informed; (5) acting with discretion; self-observant; self-restrained
• More firm and sure the hand of courage strikes, when it obeys the watchful eye of caution. — James Thomson (1834-1882) Scottish poet & playwright
• Be ever watchful for the opportunity to shelter little children with the umbrella of your charity; be generous to their schools, their hospitals, and their places of worship. For, as they must bear the burdens of our mistakes, so are they in their innocence the repositories of our hopes for the upward progress of humanity. — Conrad Nicholson Hilton (1187-1979) American businessman
Mythological Figure: Argus, a Greek mythological giant had a hundred eyes and was ever watchful. After he was killed by Hermes, the god Hera set his eyes into the tail of the peacock.