Quotations: "The greater the difficulty, the more the glory in surmounting it."?

Questions

What is Jainism?

What is said to be the mother of all invention?

In which series did Donna Reed step into Barbara Bel Geddes shoes?

In the uK excluding mainland Britain what is the largest island?

Who had top ten hits in the 1980s with Something about you,Lessons in Love and Runninf in the family?