On Principle

“I love those who can smile in trouble, who can gather strength from distress, and grow brave by reflection. ‘Tis the business of little minds to shrink, but they whose heart is firm, and whose conscience approves their conduct, will pursue their principles unto death.”
— Leonardo da Vinci

On Violence (and bullying, verbal abuse, trolling, etc)

All violence is an attempt to replace shame with self-esteem.

— James Gilligan

According to Wikipedia, “James Gilligan is an American psychiatrist and author, husband of Carol Gilligan and best known for his series of books entitled Violence, where he draws on 25 years of work in the American prison system to describe the motivation and causes behind violent behavior. “