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It is better, of course, to know useless things than to know nothing.

I know a lot about a few things - mostly useless things.

There is much pleasure to be gained from useless knowledge.

You can't know what you don't know. You can't know about things you have yet to discover.

If you start with the mindset that you know nothing, you will learn a lot that nobody knew before.

Knowledge is more important than life. We've only one excuse for existing, to think, to find out, to learn.

Knowledge is of no value unless you put it into practice.

Since we cannot know all that there is to be known about anything, we ought to know a little about everything.