Simplify your ideas.

When dealing with big ideas, ask yourself: What sentence contains the most information in the fewest words?
For example, a one-sentence idea from psychology is: "We get what we reward for."

When describing something, tell it as it is and use words people understand.
Albert Einstein said: "If you can't explain it simply, you don't understand it well enough." Get to the point. Ask: What do I want to say?