The original answer defines certain conditions. Anything else is a different question.

To acquire knowledge, one must study; but to acquire wisdom, one must observe.

Success is achieved by developing our strengths, not by eliminating our weaknesses.

Know how and how much to tip people who expect gratuities, even in the case of poor service.

Being defeated is often a temporary condition. Giving up is what makes it permanent.

Working in an office with an array of electronic devices is like trying to get something done at home with half a dozen small children around. The calls for attention are constant.

Be able to hiccup silently, or at least without alerting neighbors to your situation. The first hiccup is an exception.

Be able to analyze statistics, which can be used to support or undercut almost any argument.

Skill is successfully walking a tightrope between the twin towers of New York's World Trade Center. Intelligence is not trying.

Know the official post office abbreviations for all 50 states without having to consult a list.

There's plenty of intelligence in the world, but the courage to do things differently is in short supply.

As long as people will shed the blood of innocent creatures there can be no peace, no liberty, no harmony between people. Slaughter and justice cannot dwell together.

A storybook marriage? No, not at all. What Mitt Romney and I have is a real marriage.

How deeply bound by cords of family anger we all are[...]None of us breaks free.

I've been obsessed with stopping people from blowing each other's brains out since I was ten.

it is a curious fact, but one which all experience owns, that people do not desire so much to appear better, as to appear different from what they really are.

I have a horror of people who speak about the beautiful. What is the beautiful? One must speak of problems in painting!

I think in any writing you're paying attention to detail.

You may learn to imitate a birdcall, but do you experience what the nightingale feels for the rose?

If you think too much about something, you're not feeling it.