Sin penetrates to the heart, darkens and hardens it until it extinguishes the light of belief. Each sin has a path that leads to unbelief. Unless that sin is swiftly obliterated by seeking God's forgiveness, it grows from a worm into a snake that gnaws at the heart.

Perhaps one of the most important things you can do for human beings is wean them off an animal-based diet. It hardens the arteries and runs up our health-care costs. The last thing a poor person can afford is a heart attack or cancer or a stroke. And that's all linked to a meat-based diet. I think animal liberation is human liberation.

Without experience, the heart hardens.

What fire does not destroy, it hardens

Perhaps one of the most important things you can do for human beings is wean them off an animal-based diet. It hardens the arteries and runs up our health-care costs. The last thing a poor person can afford is a heart attack or cancer or a stroke. And that's all linked to a meat-based diet. I think animal liberation is human liberation.