Quotes for the Martin Luther King Jr holiday

Next week is Martin Luther King Jr holiday. Here are a few quotes from MLK 

Darkness cannot drive out darkness; only light can do that. Hate cannot drive out hate; only love can do that.

I have a dream that my four little children will one day live in a nation where they will not be judged by the color of their skin, but by the content of their character.

The time is always right to do what is right.