What we know is certain are that we’re alive. What we know is certain are that we get hungry and/or thirsty. What we know is certain is that we want to know about life. What we know is certain is that there are a lot of uncertainties. What we know is certain are that change is constant. What we know is certain are that we experience pain. What we know is certain are that we experience joy. What we know is certain is that we’re born, we live, then we die. What we know is certain is that it rains, snows, the wind blows and the sun shines.