Grey symbolizes security, reliability, intelligence, staid, modesty, maturity, and conservative. Black can also represent ideas such as power, sexuality, sophistication, formality, wealth, mystery, fear, evil, unhappiness, depth, style, sadness, remorse, anger, and mourning but The owl can see that which others cannot, which is the essence of true wisdom. The owl is accepted as a universal symbol for wisdom and knowledge and as such makes an excellent symbol and emblem for a center of learning and research.