Ethics is knowing the difference between what you have a right to do, and what is right to do. I have a right, to tell the truth, and to do it tactfully!
A couple of quotes, there are so many but I liked these two.
“Integrity is telling myself the truth. And honesty is telling the truth to other people.”- Spencer Johnson.
“Ethics is nothing else than reverence for life.”- Albert Schweitzer. — Abortion comes to my mind!