+— [[https://en.wikipedia.org/wiki/Nelson_Mandela | Nelson Mandela]]
+
+"Mainly play the things on the piano which please you, even if the teacher does not assign those. \\
+That is the way to learn the most, that when you are doing something with such enjoyment that you don’t notice that the time passes." \\
+— [[https://fs.blog/2015/02/albert-einstein-learning/ | Einstein to his son]]
+
+"Do not keep children to their studies by compulsion but by play." \\
+— [[http://perseus.uchicago.edu/perseus-cgi/citequery3.pl?dbname=GreekTexts&getid=1&query=Pl.%20Resp.%20537c | Plato]]
+
+"If you want to be creative, stay in part a child, with the \\
+creativity and invention that characterizes children before \\
+they are deformed by adult society." \\
+— [[https://en.wikipedia.org/wiki/Jean_Piaget | Jean Piaget]], pioneer of [[https://en.wikipedia.org/wiki/Constructivism_(philosophy_of_education) | Constructivism]]
+
+“At times I feel certain I am right while not knowing the reason. \\
+When the eclipse of 1919 confirmed my intuition, I was not in the least surprised. \\
+In fact, I would have been astonished had it turned out otherwise. \\
+Imagination is more important than knowledge. \\
+For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution. \\
+It is, strictly speaking, a real factor in scientific research.” \\
+— [[https://quoteinvestigator.com/2013/01/01/einstein-imagination/ | Albert Einstein]], 1929
+
+"I know nothing except the fact of my ignorance." \\
+— [[https://en.wikipedia.org/wiki/Socrates | Socrates]] \\
+"Facts are stubborn things." \\
+— [[https://en.wikipedia.org/wiki/John_Adams | John Adams]]
+"What can be asserted without evidence can also be dismissed without evidence." \\
+— [[https://en.wikipedia.org/wiki/Hitchens%27s_razor | Christopher Hitchens' razor]] \\
+
+"You don’t get to say you’ve proved something if you haven’t explained it. \\
+A proof is a social construct. If the community doesn’t understand it, \\
+you haven’t done your job.” \\
+— [[http://projectwordsworth.com/the-paradox-of-the-proof/ | Cathy O’Neil on Mochizuki's impenetrable proof of the ABC conjecture