You are nearing the land that is life; you will recognize it by its seriousness.

The “seriousness” of a mathematical theorem lies, not in its practical consequences, which are usually negligible, but in the significance of the mathematical ideas which it connects.

The seriousness of a theorem, of course, does not lie in its consequences, which are merely the evidence for its seriousness.

A love like that was a serious illness, an illness from which you never entirely recover.

A good fight should be like a small play, but played seriously

The cross shows us the seriousness of our sin-but it also shows us the immeasurable love of God.