The Commonest Weakness Of Our Race Is

Love Your Country, But Never Trust Its Government.

It May Take Endless Wars And Unbearable Population Pressure To Force-feed A Technology To The Point Where It Can Cope With Space. In The Universe, Space Travel May Be The Normal Birth Pangs Of An Otherwise Dying Race. A Test. Some Races Pass, Some Fail.

I Have Never Been Able To See Life As Anything But A Vast Complicated Practical Joke, And It's Better To Laugh Than Cry.

You Can Go Wrong By Being Too Skeptical As Readily As By Being Too Trusting.

Son, The Phrase Is Self-contradictory; "sense" Is Never "common".