I came across a website called WisdomQuotes.com that I like. One can type in various aspects of wisdom and up pops a bunch of quotes on the subject. For example, I just looked up “Kindness” and 3 long pages of many related quotes came up. Here are some of my my favorites:

“Be kind for everyone you know is fighting a hard battle.” -Philo

“When I was young, I used to admire intelligent people; as I grow older, I admire kind people.” –Abraham Herschel

“We are made kind by being kind.” –Eric Hoffer

“You cannot do a kindness too soon for you never know when it will be too late.” –Ralph Waldo Emerson

“Wherever there is a human being their is a chance for kindness.” –Seneca