A few opinions:


"In hours of weariness, sensations sweet,
Felt in the blood, and felt along the heart;
And passing even into my purer mind,
With tranquil restoration--feelings too
Of unremembered pleasure: such, perhaps,
As have no slight or trivial influence
On that best portion of a good man's life,
His little, nameless, unremembered acts
Of kindness and of love." - William Wordsworth


"What is it to practice benevolence? It is to imitate the Deity." - Publius Syrus


"Do the thing you believe in. Do the best you can in the place where you are and be kind."
- Scott Nearing


"Ethics is the activity of a man directed to secure the inner perfection of his own personality...
By its means man is to become capable of acting among men and in the world as a higher and purer force, and thus to do his part towards the actualization of the ideal of general progress."
- Albert Schweitzer


"Ethical life and service are an aid, but they are not an end in themselves. The end is to be one with God." - Swami Prabhavananda


"Ethics judges not only man, but God also." - Nicolas Verdyaev


"Without ethics, everything happens as if we were all five billion passengers on a big machinery and nobody is driving the machinery. And it's going faster and faster, but we don't know where."
- Jacques Cousteau