Buying what you need, not what you want is the best thing that we can start easily to protect the environment from now. Have you ever heard of Japanese word 'mottainai'? This word can't be translated easily, but to put it simply, it is a similar meaning to 'What a waste!' A Kenyan environmentalist Wangari Maathai was impressed by the many meaning of this word when she visited Japan first time. Then, at a session of United Nations, she introduced the word mottainai as a universal language slogan for environmental protection. Mottainai also has the meaning of gratitude for the earth, nature, people who made something and people who helped to bring it to you.