This has long been attributed to Rizal as part of a poem, titled Sa Aking Mga Kabata (To My Fellow Children), he wrote at the age of 8, as quoted in " Community Celebrates Rizal Day" in Asian Journal USA (31 December 2007) http://asianjournalusa.com/community-celebrates-rizal-day-p3868-95.htm, but this has become disputed as highly unlikely in "Did young Rizal really write poem for children?" by Ambeth R. Ocampo, in Philippine Daily Inquirer (22 August 22 2011) http://newsinfo.inquirer.net/45479/did-young-rizal-really-write-poem-for-children
Disputed