Here are some that I was able to think of.

Strength does not come from physical capacity, it comes from an indomitable will' ~ Mahatma Gandhi

If the words you spoke would appear on your skin, would you still be beautiful?

Know your limitations, and then defy them.

Out of suffering emerges the strongest of souls.

"Man's greatest source of unhappiness is expectations." I believe it to be true.

When the pain of staying the same exceeds the pain of changing, then we change.

There's a power in looking silly and not caring that you do.

Be kind to unkind people, they need it most.

“To live is the rarest thing in the world. Most people exist, that is all.” ~ Oscar Wilde

The world suffers alot. Not because of the violence of bad people, but because of the silence of good people. ~ Napoleon Bonaparte

I'm gonna kick the darkness, until it bleeds daylight

In other traditions demons are expelled externally. But in my tradition demons are accepted with compassion

You're not here merely to make a living. You are here to enable the world to live more amply, with greater vision, and with a finer spirit of hope and achievement. You are here to enrich the world. You impoverish yourself if you forget this errand. ~Woodrow Wilson

A bird doesn't sing because it has all the answers, it sings because it has a song. ~ Maya Angelou

It does not do to dwell on dreams and forget to live.