In an ever changing world, you never learn it all, even if you keep growing into your 90s.

We worry about appearing awkward in a presentation. But up to a point, most people seem to feel more comfortable with less-than-perfect speaking abilities. It makes the speaker more human - and more vulnerable, meaning he is less likely to attack our decisions or beliefs.

Neurologists say that our brains are programmed much more for stories than for abstract ideas. Tales with a little drama are remembered far longer than any slide crammed with analytics.

John P. Kotter Quotes