Look at the weaknesses of others with compassion, not accusation. It's not what they're not doing or should be doing that's the issue. The issue is your own chosen response to the situation and what you should be doing. If you start to think the problem is "out there," stop yourself. That thought is the problem.
Daily Reflections for Highly Effective People (ed. Simon and Schuster, 1994) - ISBN: 9780671887179