Simplify the following text for a Grade 9 native English-speaking person.
Original: The 1960 UNESCO Convention against Discrimination in Education defines education in Article 1 ( 2 ) as : `` all types and levels of education , ( including ) access to education , the standard and quality of education , and the conditions under which it is given . ''
Simplified: Furthermore , all children should have access to secondary education , and higher education . However , many children around the world can not or do not go to secondary education or higher education .