"There are few circumstances which so strongly distinguish the philosopher, as the calmness with which he can reply to criticisms he may think undeservedly severe"

This quote by Charles Babbage speaks to the self-control of a thinker. It recommends that a theorist is able to remain calm and made up when faced with criticism, even if they feel the criticism is unjustified. This signifies a fully grown and smart individual, as it takes a great deal of self-control to not be affected by criticism. It likewise suggests that a philosopher is able to take an action back and objectively evaluate the circumstance, instead of reacting mentally. This is an important characteristic, as it permits the theorist to think plainly and make choices based upon factor, rather than emotion. It suggests a person who is able to believe on their own and make choices based upon their own judgement, rather than being swayed by the opinions of others.