Pushing yourself to extremes blows out the cobwebs of trusted habit. It shakes up what you know to be reliably safe and substitutes the miracle of insecurity.
We are insane. That is what sin is. Sanctity is identitical with sanity. It means living the truth, living in reality. Sin always substitutes unreality for reality.
But rules cannot substitute for character.
Words are a pretty fuzzy substitute for mathematical equations.
There's no substitute for loyalty.
There's no substitute for work. There are no shortcuts. There are no secrets.
The substitute that thinks his place below him, will certainly be below his place.
. . . law is a substitute for love.
Drunkenness is never anything but a substitute for happiness.
For a while in the twenties and thirties, art was talked about as a substitute for religion; now B movies are a substitute for religion.
Marriage is no substitute for political experience.
Fondness is a poor substitute for friendship.
Hope is not a substitute for pain. Hope is in spite of pain.
I have struggled against tyranny. I didn't do that in order to substitute another.
There's simply no substitute for experience in terms of aviation safety.
Education is no substitute for intelligence.
Information cannot serve as an effective substitute for thinking.
All art is image making and all image making is the creation of substitutes.
Whatever the ego seeks and gets attached to are substitutes for the Being that it cannot feel.
As we gain satisfaction from artificial substitutes for nature we forget that there is no known substitute for Nature, the real thing and its eons of intelligent, life supportive, experience. Each substitute we create falls short of nature's balanced perfection, thus producing our pollution, garbage and relationship conflicts.