1. Accepting the way things are not the way we want them to be..
Doesn't it depend upon, Rick, eg, whether the way we want to be is better or worse than the way they are
2. Being able to adapt to new and different situations.
Sure Rick but isn't that relatively trivial, doesn't it go without saying
3. Our five senses are the only connection with the real world.
No. Violates the General Principle that nothing is entirely anything while everything is partly something else
4. We are products of unintentional, constructive and destructive, brainwashing (behavior conditioning) that causes everything we do, say, and what we think.
"Everything" violates GP above
When we remember we are all mad, the mysteries disappear and life stands explained. Mark Twain
Some truth to that. According to the GP we're all nuts in one way or another. However life will never stand explained