A zebra does not change its spots.
In any case in so far as our knowledge of the universe carries us the advent of civilization for the first time on our globe represents the highest ascent of the life processes to which evolution had anywhere attained.
There was an age however when the transition from savagery to civilization...
Nothing is so threatening to conventional values as a man who does not...
Ignorance more frequently begets confidence than does knowledge: it is...
No thief, however skillful, can rob one of knowledge, and that is why...
