Mary Bowerman and Ashley May

USA TODAY

From quotes on forgiveness to the struggle for racial justice, Martin Luther King Jr.'s words have continued to resonate with audiences, decades later.

King is remembered Monday as a civil rights leader that left a lasting legacy. The holiday that fal birthday became first federal holiday honoring an African American when it was approved in 1983.

As the country observes King, here's a look back at some of the most popular MLK quotes.

This list of ten quotes was originally published in 2016 after Twitter said these phrases were the most tweeted phrases by King.

"The time is always right to do what is right."

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

"Injustice anywhere is a threat to justice everywhere."

"Our lives begin to end the day we become silent about things that matter."

"I have decided to stick with love. Hate is too great a burden to bear."

"Faith is taking the first step even when you don’t see the whole staircase."

"Forgiveness is not an occasional act; it is a constant attitude."

"Life's most persistent and urgent question is, 'What are you doing for others?''

"Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity."

"We must accept finite disappointment, but never lose infinite hope."