658  There are only two mistakes one can make along the road to truth; not going all the way, and not starting
1752  An error can never become true however many times you repeat it. The truth can never be wrong, even if no one hears it.
1527  Truth is its own reward.
1552  Three things cannot long be hidden: the sun, the moon and the truth.........
1626  Nothing in the world can take the place of Persistence. Talent will not; nothing is more common than unsuccessful men with talent. Genius will not; unrewarded genius is almost a proverb. Education will not; the world is full of educated derelicts. Persistence and determination alone are omnipotent. The slogan 'Press On' has solved and always will solve the problems of the human race.