Vigor

Ultimately, what matters is not methodology, but vitality or vigor.

For only the latter can boost the course of action.

Without it, hundreds of plans and tactics will be of no avail.

Good methods may produce success, but would not necessarily produce satisfaction and fulfillment.

Some may even suffer from incessant nerve-racking efforts to maintain such schemes endlessly.

Success per se is not an ultimate aim.

What matters is how happy one is, which is to be sought ultimately.

And, the sense of well-being itself would enhance success.

At any rate, whatever one's state and stage may be, those with full of vigor are fulfilled, happy and successful at anytime.