Don’t ever respond to a solicitation or a proposal on the phone. The urgency is a disguise.
Life is fragile. We're not guaranteed a tomorrow so give it everything you've got.
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.