Strength of mind rests in sobriety; for this keeps your reason unclouded by passion – Pythagoras

Without strength and courage it’s really hard to perform at the highest levels of international figure skating, because you’re alone on the ice and you only have seven minutes over two nights to prove yourself – Scott Hamilton

Do not pray for an easy life, pray for the strength to endure a difficult one ― Bruce Lee

Does anybody really think that they didn’t get what they had because they didn’t have the talent or the strength or the endurance or the commitment? – Nelson Mandela