The best Quotations

Into each life some rain must fall, some days be dark and dreary.
- Henry Wadsworth Longfellow

Do you know the writers of the following quotations?

Quotation Nobody can be as agreeable as an uninvited guest. - writer
Quotation No man should advocate a course in private that he's ashamed to admit in public. - writer
Quotation People should be free to find or make for themselves the kinds of educational experience they want their children to have. - writer
Quotation A timid person is frightened before a danger, a coward during the time, and a courageous person afterward. - writer
Quotation Knowledge is what we get when an observer, preferably a scientifically trained observer, provides us with a copy of reality that we can all recognize. - writer
Quotation Some movie stars wear their sunglasses even in church. They're afraid God might recognize them and ask for autographs. - writer