It is by a thorough knowledge of the whole subject that [people] are enabled to judge correctly of the past and to give a proper direction to the future.
Patience and perseverance have a magical effect before which difficulties disappear and obstacles vanish.
Life is a problem; mortal man was made to solve the solemn problem right or wrong.
If your actions inspire others to dream more, learn more, do more and become more, you are a leader.