'Pride goeth before a fall':
Having the first causes the other.
Having the first causes the other to be worse (that is, 'the bigger they are, the harder they fall').
The first, while still holding boldly, signals to the prescient onlooker the inevitability of the second.
Once pride goes, one withers.
Self-recognition sobers one, allowing a meaningful end.
No fall is worth noticing unless it's preceded by strong ego.