Knowing something and understanding it were not the same thing.

It’s not that any of these things are bad or wrong. It’s that knowing what to do tells you nothing about what happens in your head when you try to do it.

To have a right to do a thing is not at all the same as to be right in doing it.

Getting something and having the wits to use it...those are two different things.

The hardest thing is not doing what you want — it’s knowing what you want.

But it is worth noting that to be good at something is not quite the same as loving it.

Just because you’re adequately good at something doesn’t mean that’s what you should do.

He knew what had to be done. It is not always the same as knowing what to do.

If you can’t successfully do something, don’t think you can tell others how it should be done

Knowing what a person believes on a certain subject is not identical to knowing how that person thinks.

Remember, to learn and not to do is really not to learn. To know and not to do is really not to know.

in life, lots of people know what to do, but few people actually do what they know.

知之者不如好之者，好之者不如樂之者。”
“Knowing it does not compare with loving it; loving it does not compare with delighting in it.

The problem in my life and other people's lives is not the absence of knowing what to do but the absence of doing it.