Great as were Lyall's literary attributes and powers of initiation and construction, his critical faculties were even more fully developed. This made him at times somewhat difficult to deal with, for he was very critical and cautious in the tendering of advice as regards any new policy or any suggested change. When once he could see his way through difficulties, or came to the conclusion that those difficulties must be faced, then his caution and critical instincts disappeared, and he was prepared to be as bold in the prosecution of what he advocated as he had previously been reluctant to start. The mental attitude which Lord George Hamilton thus describes is by no means uncommon in the case of very conscientious and brilliantly intellectual men, such, for instance, as the late Lord Goschen, who possessed many characteristics in common with Lyall. They can cite, in justification of their procedure, the authority of one who was probably the greatest man of action that the world has ever produced. Roederer relates in his journal that on one occasion Napoleon said to him: Il n'y a pas un homme plus pusillanime que moi quand je fais un plan militaire; je me grossis tous les dangers et tous les maux possibles dans les circonstances; je suis dans une agitation tout à fait pénible; je suis comme une fille qui accouche. Et quand ma résolution est prise, tout est oublié, hors ce qui peut la faire réussir.