Letter to Joseph Gillespie (July 13, 1849).
A happy life consists not in the absence, but in the mastery of hardships.helen keller
Visual forms are not perceived differently from colors or brightness. They are sense qualities, and the visual character of geometry consists in these sense qualities.Hans reichenbach
Patriotism consists not in waving the flag, but in striving that our country shall be righteous as well as strong.james Bryce
Citizenship consists in the service of the country.jawaharlal nehru