I know that I am not always right to the perception of some, but I am not daunted of being wrong. That's the effectiveness of confidence. - Lionel Suggs
Efficiency is doing the thing right. Effectiveness is doing the right thing. - Peter F. Drucker
The Depth of your Mythology is the Extent of your Effectiveness.
People, like nails, lose their effectiveness when they lose direction and begin to bend.
Our effectiveness depends on our capacity to be audacious and astute, clear and appealing. I would hope that we can create a language more fearless and beautiful than that used by conformist writers to greet the twilight. - Eduardo Galeano
Biblical spirituality means powerlessness, living without embellishment or pretense, free to be faithful in the gospel, and free from anxiety about effectiveness or similar illusions of success. - William Stringfellow