The most immutable barrier in nature is between one man's thoughts and another's.
Act the part and you will become the part.
In the matter of belief, we are all extreme conservatives.
[Religion is] the attempt to be in harmony with an unseen order of things.
I don't sing because I'm happy; I'm happy because I sing.
We are not only gregarious animals, liking to be in sight of our fellows, but we have an innate propensity to get ourselves noticed, and noticed favorably, by our kind.