You speak of destiny as if it was fixed.
We are all subject to the fates. But we must act as if we are not, or die of despair.
But as the wave expended its force and the waters withdrew, the bleak rocks remained; there was no arguing with fate; neither his despair nor Lyra's had moved them a single inch.
We are all subject to the fates. But we must all act as if we are not, said the witch, or die of despair.