"The human frame being what it is, heart, body and brain all mixed together, and not contained in separate compartments as they will be no doubt in another million years, a good dinner is of great importance to good talk. One cannot think well, love well, sleep well, if one has not dined well."

It reminds me of something a professor of mine once said about people being reluctant to admit that all of our grand emotions can sometimes come down to a bit of indigestion. 

More than anything, perhaps, creatures of illusion as we are, it calls for confidence in oneself. Without self–confidence we are as babes in the cradle. And how can we generate this imponderable quality, which is yet so invaluable, most quickly? By thinking that other people are inferior to one self.