You must know all there is to know in your particular field and keep on the alert for new knowledge. The least difference in knowledge between you and another man may spell his success and your failure.
Henry FordMany persons think that by hoarding money they are gaining safety for themselves. If money is your only hope for independence, you will never have it. The only real security that a man can have in this world is a reserve of knowledge, experience, and ability. Without these qualities, money is practically useless. The security even of money depends on knowledge, experience, and ability. If productive ideas are displaced by destructive ideas, economic life suffers.
Henry Ford