“You can’t depend on your eyes when your imagination is out of focus.”

Mark Twain

“When in doubt tell the truth.”

Mark Twain

I’ll add that there is always a doubt. Always tell the truth, the whole truth, and nothing but the truth, and admit you were wrong when you err.

Also,

“Science without religion is lame, religion without science is blind.”

Albert Einstein

And for a little seasoning:

“Communism is like prohibition, it’s a good idea but it won’t work.”

Will Rogers