His thin lips were habitually pressed together, giving a suggestion of strength to the set of his mouth.

A man with such a mouth can think and act, but not feel either passionately or enduringly.

He will direct men because he knows his own mind, but is not likely to sway them because he will always be master of himself, and will not become enslaved to any great enthusiasm.

The students trooped into the hall, and the examination began.

The assistant lecturers helped in the work.