A good person is one who follows the Ten Commandments and the golden rule. There is plenty of precedent in history to guide us and we probably evolved to be sensitive to Bible-Golden Rule situations. But the dilemmas faced by a worker - a journalist, an architect, an auditor - or by a citizen (what position to take on stem cell research, whether to run for office, what is the proper balance between taxation and social nets) - are not questions that can be answered by traditional texts or precedents.

'Til 1983, I wrote primarily for other psychologists and expected that they would be the principal audience for my book.

We can enhance our intelligences, but I am never going to become Yo-Yo Ma, Albert Einstein, Marie Curie, or Pele.

In order for me to 'endorse' an intelligence, I need to carry out lots of research.

If we were to abandon concern for what is true, what is false, and what remains indeterminate, the world would be totally chaotic. Even those who deny the importance of truth, on the one hand, are quick to jump on anyone who is caught lying.

Don't assume that the way that one searches and researches is the same from one era to another - it isn't. In the 19th century, most research was done by amateurs: either individuals who were rich or individuals who had a day job. In the 20th century, most researchers worked at universities or think tanks and received money from the government or from foundations to pursue their work. In our time, the sources of support and the locations for research may be quite different.

Knowledge is not the same as morality, but we need to understand if we are to avoid past mistakes and move in productive directions. An important part of that understanding is knowing who we are and what we can do... Ultimately, we must synthesize our understandings for ourselves.