One thing that gets you less far than sarcasm is condescending pithy platitudes.
Edit: Rather than quote meaningless self-help fodder, you could have pointed out that it is difficult to convince people of the benefits of a different approach by labelling them. It is instead better to point out the costs of what we're currently doing wrong, and the benefits of the proposed way.
Edit: Rather than quote meaningless self-help fodder, you could have pointed out that it is difficult to convince people of the benefits of a different approach by labelling them. It is instead better to point out the costs of what we're currently doing wrong, and the benefits of the proposed way.