“You’re almost there.”
“Pain is temporary, quiting is permanent.”
“You may be here tomorrow, but your dreams may not.”

Some of my other mantras come from external sources, like Bruce Springsteen. His anthems are mantras for wishful thinking athletes. Here are some:

Talk about a dream, try to make it real – “Badlands”

You’ve got to learn to live with what you can’t rise above – “Tunnel of Love”

Some guys they just give up living, others start dying little by little piece by piece, some guys come home from work and wash up, and go racing in the streets. – “Racing in the Streets”

When it comes to luck, you make your own. – “Lucky Town”

Keep your eyes on the prize, hold on. – “Eyes on the Prize”

“It is not the critic who counts, nor the man who points how the strong man stumbled or where the doer of deeds could have done them better. The credit belongs to the man who is actually in the arena; whose face is marred by dust and sweat and blood; who strives valiantly…who knows the great enthusiasms, the great devotions, and spends himself in a worthy cause; who, at best, knows the triumph of high achievement; and who, at the worst, if he fails, at least fails while daring greatly, so that his place shall never be with those cold and timid souls who know neither victory nor defeat.”

Theodore Roosevelt, 1910