Misc: In 1945 Roosevelt, ---------- , and Stalin began a conference at Yalta.?

Questions

first, altering the position of matter at or near the earth's surface relative to other matter; second, telling other people to do it."- Bertrand Russell (1872 - 1970)?

"...do your -------------. You can't lead without knowing what you're talking about..."- George Bush (1925 - )?

"Working with ------------- is like getting hit over the head with a valentine."ZZZ- Christopher Plummer?

"...For that's the way it is with life, as some of the most beautiful days come completely by chance. But even the most beautiful days eventually have their ----------." - Author Unknown?

"--------------- is interest paid on trouble before it is due."- William Inge?