Welcome. And congratulations. I am delighted that you could make it. Getting here wasn't easy. I know. In fact, I suspect it was a little tougher than you realise.
... for you to be here now, trillions of drifting atoms had somehow to assemble in an intricate and curiously obliging manner to create you. It's an arrangement so specialised and particular that it has never been tried before... For the next many years... these tiny particles will uncomplainingly engage in all the billions of deft, cooperative efforts necessary to keep you intact and let you experience the supremely agreeable but generally under appreciated state known as existence.
... atoms are fickle and their time of devotion is fleeting -- fleeting indeed. Even a long human life adds up to only about 650,000 hours.
Planck was often unlucky in life. His beloved first wife died early in 1909 and the younger of his two sons was killed in the First World War. He also had twin daughters whom he adored. One died giving birth. The surviving twin went on to look after the baby and fell in love with her sister's husband. They married and two years later she died in childbirth. In 1944, when Planck was 85, an Allied bomb fell on his house and he lost everything -- papers, diaries, a lifetime of accumulations. The following year his surviving son was caught in a conspiracy to assassinate Hitler and executed.