As for Leary's commanding presence on the dimly lit Conservative Leadership Stage, Shakespeare's Macbeth probably is the most appropriate comment for this ho-hum grand-stander:
"Out, out, brief candle!
Life's but a walking shadow, a poor player
That struts and frets his hour upon the stage
And then is heard no more: it is a tale
Told by an idiot, full of sound and fury,
Signifying nothing."