Abundance is a test of one's character — The abundance of money is a trial for man.

Abundance is likely to make one greedy — It is not want but abundance that makes avarice.

Abundance is, in fact, a curse — abundance maketh poor.

Abundance is that from which boredom comes.

Certainty is foolish ---- It’s not what we don’t know that gets us in trouble. It’s what we know for sure that just ain’t so.

Certainty is impossible — we see through a glass, darkly.

Certainty is an absurd one.

Certainty is dangerous — Human beings are perhaps never more frightening than when they are convinced beyond doubt that they are right.