“Character” (behaviours, attitudes, values) – to face an increasingly challenging world: As complexities increase, humankind is rediscovering the importance of teaching character traits, such as performance-related traits (adaptability, persistence, resilience) and moral-related traits (integrity, justice, empathy, ethics). The challenges for public school systems are similar to those for skills, with the extra complexity of accepting that character development is also becoming an intrinsic part of the mission, as it is for private schools.