Reason obeys itself; and ignorance submits to whatever is dictated to it.

Life is not measured by the number of breaths we take, but by the moments that take our breath away.

All human errors are impatience, a premature breaking off of methodical procedure, an apparent fencing-in of what is apparently at issue.

The only way to succeed is to be completely honest with yourself and others.

The unexamined life is not worth living.