Learn from the mistakes of others - you won't live long enough to make them all yourself. He's opposed to millionaires, but it would be dangerous to offer him the position.
I have attended operas, whenever I could not help it, for fourteen years now; I am sure I know of no agony comparable to the listening to an unfamiliar opera.
All you need in this life is ignorance and confidence; then success is sure. You can "already know for sure" things that could actually impede progress. Always be on the lookout for the things you did not know, that you did not know. Secondly, work on strengthening personal belief that a particular will be achieved regardless of any adversity that may show up, or evidence to the contrary.
Always obey your parents. When they are present. This is the best policy in the long run. Because if you don't, they will make you. Most parents think they know better than you do, and you can generally make more by humoring that superstition than you can by acting on your own better judgment.