It is always wise to look ahead – but difficult to look further than you can see.

Appears in Churchill By Himself, ed. Langworth, PublicAffairs , p. 576 ("Appendix I : Red Herrings") : ISBN 1586489577 , with the following explanatory note ; "Reported by the usually reliable Graham Cawthorne, but not in Hansard; possibly an aside to a colleague, however"