When the going gets tough, the tough get going.
The question is not “who is going to let me,” it’s “who is going to stop me?
(Ayn Rand said)
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 said)
From the war school of life: What doesn’t kill me makes me stronger.