“Somebody once said that all people are either intelligent or stupid, and either lazy or enterprising. There are lazy idiots, usually irrelevant and innocuous; then there are the intelligent and ambitious, who can be given important tasks to perform. The greatest achievements, in all fields, are nearly always the work of those intelligent and lazy. But one thing should be kept in mind: the most dangerous category, the people who are unfailingly responsible for the most appalling disasters, the ones you have to avoid at all costs, are enterprising idiots.”

“All the people who do well work very hard. Nobody who has a record of achievement has been lazy about it.”

“Somebody once said that in looking for people to hire, you look for three qualities: integrity, intelligence, and energy. And if you don’t have the first, the other two will kill you. You think about it; it’s true. If you hire somebody without [integrity], you really want them to be dumb and lazy.”

“The biggest mistake we can make is to think that we've figured the whole thing out. The people I know who are the greatest skeptics, who are least certain about how the world and the universe works, are also the most intelligent.... Absolute certainty is only for stupid people. It requires a certain intelligence for us to realize how little we actually know.”

“Ambitious people understand intelligent people far better than intelligent people understand ambitious people; therefore, ambition will always triumph over intelligence. Once you appreciate this reality, civilization becomes clearer and unfortunately, more distressing.”

“Even the greatest fool can accomplish a task if it were after his or her heart. But the intelligent ones are those who can convert every work into one that suits their taste.”