For those who believe, no proof is necessary. For those who don't believe, no proof is possible.

The very first law in advertising is to avoid the concrete promise and cultivate the delightfully vague.

Attitude is your acceptance of the natural laws, or your rejection of the natural laws.

For those who believe, no proof is necessary. For those who don't believe, no proof is possible.

I find it difficult to believe that words have no meaning in themselves, hard as I try. Habits of a lifetime are not lightly thrown aside.

Common sense is what tells us the earth is flat.