It is fatal to be a man or woman pure and simple: one must be a woman manly, or a man womanly.
Mistakes are a part of being human. Appreciate your mistakes for what they are: precious life lessons that can only be learned the hard way. Unless it's a fatal mistake, which, at least, others can learn from.
The damage that the human body can survive these days is as awesome as it is horrible: crushing, burning, bombing, a burst blood vessel in the brain, a ruptured colon, a massive heart attack, rampaging infection. These conditions had once been uniformly fatal.
In the whole round of human affairs little is so fatal to peace as misunderstanding.
Our acts our angels are, for good or ill, our fatal shadows that walk by us still.