“It takes energy, mental toughness and spiritual reinforcement to successfully deal with life’s opportunities, and to reach your objectives.” ―Zig Ziglar

“It’s when the discomfort strikes that they realize a strong mind is the most powerful weapon of all.” ―Chrissie Wellington

“Throw away all weakness. Tell your body that it is strong, tell your mind that it is strong and have unbounded faith and hope in yourself.” ―Swami Vivekananda

“Strong minds suffer without complaining; weak minds complain without suffering.” ―Lettie Cowman

“Your toughness is made up of equal parts persistence and experience. You don’t so much outrun your opponents as outlast and outsmart them, and the toughest opponent of all is the one inside your head.” ―Joe Henderson

 “Strength isn’t about bearing a cross of grief or shame. Strength comes from choosing your own path, and living with the consequences.” ―Jenny Trout

“Make sure your worst enemy doesn’t live between your own two ears.” ―Laird Hamilton

“You have power over your mind, not outside events. Realize this, and you will find strength.” ―Marcus Aurelius

“Champions aren’t made in the gyms. Champions are made from something they have deep inside them―a desire, a dream, a vision. They have to have the skill, and the will. But the will must be stronger than the skill.” ―Muhammad Ali