Take away fear, and the battle of Freedom is half won.
Don't get up from the feast of life without paying for your share of it.
The proper time to influence the character of a child is about a hundred years before he is born.
Nobody is bored when he is trying to make something that is beautiful or to discover something that is true.
Don't break the silence unless you can improve on it.
For better or worse, man is the tool-using animal, and as such he has become the lord of creation. When he is lord also of himself, he will deserve his self-chosen title homo sapiens.