Wild animals never kill for sport. Man is the only one to whom the torture and death of his fellow creatures is amusing in itself.
As we advance in life, we learn the limits of our abilities.
Instruction does not prevent wasted time or mistakes; and mistakes themselves are often the best teachers of all.
Human improvement is from within outward.
Mistakes are often the best teachers.
The endurance of the inequalities of life by the poor is the marvel of human society.