Man is his own worst enemy.
True nobility is exempt from fear.
Everything is alive... Everything is interconnected.
Not to know what has been transacted in former times is to be always a child. If no use is made of the labors of past ages, the world must remain always in the infancy of knowledge.
No one can speak well, unless he thoroughly understands his subject.
If only every man would make proper use of his strength and do his utmost, he need never regret his limited ability.