High Quality Content by WIKIPEDIA articles! Yusof Ishak Secondary School (abbreviation: YISS) is a government secondary school located in Bukit Batok, Singapore. The school was named after Yusof Ishak who was the first president of Singapore. The six values of YISS are Resilience, Responsibility, Respect, Compassion, Confidence, and Integrity and the school motto is 'Ilmu Suluh Hidup' ( Knowledge is the Light of Life). Yusof Ishak Secondary School was established in 1965 at Jubilee Road (a side road of a section of Pasir Panjang Road which is now known as West Coast Road) as Jubilee Integrated Secondary School with Jubilee Primary School as its affiliate.