He took his courage in both hands

He turned on me a glance of stored intelligence

He was disheveled and untidy

He was inexhaustibly voluble

Heavily freighted with erudition [erudition = extensive learning]

Heights of serene contemplation

Her voice had a wooden resonance and a ghost of a lisp

Hidebound in official pedantry [pedantry = attention to detail]

High and undiscouraged hope

High-handed indifference to all restraint