Bill Gates
The difference between a stranger sending you a message that you might be interested in at a very low volume level, no repetition, just sending it to very few people, and that being done as spam — those things get close enough that you want to be careful never to filter out something that's legitimate.
More quotes and aphorisms
No man ever steps in the same river twice...I like a teacher who gives you something to take...High school dropouts are forfeiting their opportunity...I do want to be able to benefit from my work...The sublimity of wisdom is to do those things living...I am very down to earth and practical...