A word is not a crystal, transparent and unchanged; it is the skin of a living thought and may vary greatly in color and content according to the circumstances and time in which it is used. Oliver Wendell Holmes Jr.
Every role varies greatly, just as emotions vary greatly. Corin Nemec
Of course, individuals vary greatly within each racial group and should be treated as such. J. Philippe Rushton
Successful and unsuccessful people do not vary greatly in their abilities. They vary in their desires to reach their potential. John C. Maxwell