Some Christians carry their religion on their backs. It is a packet of beliefs and practices which they must bear. At times it grows heavy and they would willingly lay it down, but that would mean a break with old traditions, so they shoulder it again. But real Christians do not carry their religion, their religion carries them. It is not weight, it is wings. It lifts them up, it sees them over hard places. It makes the universe seem friendly, life purposeful, hope real, sacrifice worthwhile. It sets them free from fear, futility, discouragement, and sin — the great enslaver of men's souls. You can know a real Christian when you see him, by his bouyancy.

Twelve Tests of Character (1923); part of this has sometimes been paraphrased: Religion is not a burden, not a weight, it is wings.