It is the conquest of this fear that adds half the charm to climbing.

I don't run away from a challenge because I am afraid. Instead, I run toward it because the only way to escape fear is to trample it beneath your feet.

I have a fear of heights and I'm claustrophobic.

I'm not afraid of heights, but the idea of falling from them, well, that I'm afraid of.

I may climb perhaps to no great heights, but I will climb alone.

I have a fear of heights that borders on mania.