Doing the same thing over and over and expecting a different result.

doing something over and over expecting different results
-Albert Einstein

Trying to solve problems,
Expecting different results,
Using the exact same methods...

1) A mental state where one can not tell the difference between reality and their imagination.
3) A type of behaviour where a person may act in a way that may be seen as "uncool" or "weird" (and doesn't care).
3) The only way to fly.

locking yourself in a cage for a long period of time and only you have the key to unlock it

If I have to tell you, you'll never know

locking yourself in a cage for a long period of time and only you have the key to unlock it