Mao Zedong Thought was not created by Comrade Mao alone - other revolutionaries of the older generation played a part in forming and developing it - but primarily it embodies Comrade Mao's thinking. Nevertheless, victory made him less prudent, so that in his later years some unsound features and unsound ideas, chiefly "Left" ones, began to emerge. In quite a number of instances he went counter to his own ideas, counter to the fine and correct propositions he had previously put forward, and counter to the style of work he himself had advocated.