In a day and age in which quick solutions are popular, we recall how our parents persevered in bringing us up. Often they were so certain about the goodness in us, they made it plain that we could do it much better. When we had self-doubt about our ability, they were so certain that when we tried longer, when we tried more often, the results would be so different. Often it seemed that they knew for certain what could become of us, they did not have any doubt. They preserved in all certainty.  We did not realise it then, but we realise it now.