You have to be willing to fail in order to succeed.
Don’t ever respond to a solicitation or a proposal on the phone. The urgency is a disguise.
There is no man, however wise, who has not at some period of his youth said things, or lived in a way the consciousness of which is so unpleasant to him in later life that he would gladly, if he could, expunge it from his memory.
The most important thing in a software system is the architecture.
"In the end, it is not the years in your life that count, but the life in your years."