Philip Crosby may refer to: (wikipedia)
Selecting the right person for the right job is the largest part of coaching.
Being convinced one knows the whole story is the surest way to fail.
The great discoveries are usually obvious.
When in doubt, delete it.
Most things don't work like they are supposed to work.
You are going to be measured anyway by some means, fair or foul. Usually the one doing the measuring has nothing specific in mind; so he does it by the seat of his pants. Careers are destroyed in this manner.
A rule to live by: I won't use anything I can't explain in five minutes.
Very few of the great leaders ever get through their careers without failing, sometimes dramatically.
Successful people breed success.
You don't have to be noisy to be effective.