I know it when I don't know it. Sometimes I know it when I don't think I know it. I need to trust myself in these moments, these rare moments of self-doubt. ↗
There is no doubt that we should take solar radiation into account. We have seen ground temperatures rising since 1975, and it is important to know to what extent that has been caused by the sun or by carbon dioxide. ↗
When I was young, I was just about hard work. But as I got older, I did experience anxiety, doubt, judgment, and it's so easy to lose yourself for a second. ↗
I don't have any doubts either about the Universal Declaration of Human Rights. Perhaps some more should be added to the list, but I don't have the slightest doubt about human rights. ↗