There never was a more risky motto than that: _Know thyself_.

You've got to know yourself as far as possible.
But not just for the sake of knowing.

You've got to know yourself so that you can at last _be_ yourself.

"Be yourself" is the last motto.
The whole field of dynamic and effectual consciousness is _always_ pre-mental, non-mental.

Not even the most knowing man that ever lived would know how he would be feeling next week; whether some new and utterly shattering impulse would have arisen in him and laid his nicely-conceived self in ruins.