Maslow's Hierarchy of Needs states that our physical needs and security needs must be meet before our higher needs can be meet, all the way up to self actualization. When you observe the lives of our karate masters like Matsumura, Itsou, and Funakoshi, they were living proof that Maslow's Heirarchy of Needs is incorrect.
Funakoshi lived in a time when his physical and security needs were hardly meet, but he still strived through tremendous odds towards self-actualization. He lived with a high level of morality, self-esteem, confidence, and creativity even though he survived in a time of world unrest and starved through World War II.
When you compare this to our modern society, where our basic physical and security needs are meet, but so few make it to self-actualization - we're consumed by frivolous concerns instead. Funakoshi was a living example that striving towards a greater vision despite hardships may inspire us towards self-actualization quicker. In fact, resilience seems to be a quality that many of the greats in history have in common.
Resilience appears to be the key!