I have margins which I have to oblige by and also notes telling me that if I insert this tilde ˜ in front of each word it will stay on a line without getting broken. I have done this but this has not worked with
Lettre d'\'{E}tienne Pascal et Roberval ˜\`{a} ˜Fermat.
Fermat breaks onto the second line reading Fer-......mat.I tried with a standard ~ too. Any suggestions on how to prevent this break?.