This means that shortsightedness is not inherently female, nor is farsightedness inherently male. Secondly, people have a tendency to underestimate their future needs due to carelessness and shortsightedness. Johnny berates his father for his shortsightedness and avarice. George Perkins Marsh had said that conservation's greatest enemies were "greed and shortsightedness". Some animals suffer from shortsightedness and have poor eyesight. Brodsky's mentor, Anna Akhmatova, laughed at the KGB's shortsightedness. Sadoul held the Entente's "shortsightedness" as the main cause of this pact.