c'était là, they were

4. Kepler, Kepler (1571-1630), a celebrated German astronomer, who discovered the laws which govern the periods and motions of the planets, and which are known as Kepler's laws.

Page 39. — 1. sans égale, unparalleled, itnequaled.

2. il ne le peut pas, lie caiinot do so, or simply, he cannot; cf. page 12, note 1, and page 22, note 4.