A mind does not receive truth as a chest receives jewels that are put into it, but as the stomach takes up food into the system. It is no longer food, but flesh, and is assimilated. The appetite and the power of digestion measure our right to knowledge. He has it who can use it. As soon as our accumulation overruns our invention or power to use, the evils of intellectual gluttony begin,— congestion of the brain, apoplexy and strangulation.
Even as the holy and the righteous cannot rise beyond the highest which is in each one of you, so the wicked and the weak cannot fall lower than the lowest which is in you also.
You do not settle whether an argument is justified by merely showing that it is of some use. The distinction is not between useful and useless experiments but between barbarous and civilized behaviour. Vivisection is a social evil because if it advances human knowledge, it does so at the expense of human character.
For good or evil, a line has been passed in our political history; and something that we have known all our lives is dead. I will take only one example of it: our politicians can no longer be caricatured.