“What the hand does the mind remembers.”

“Those who voluntarily put power into the hands of a tyrant ... must not wonder if it be at last turned against themselves.”

“A wild boar was sharpening his tusks upon the trunk of a tree in the forest when a fox came by and asked, Why are you doing that, pray? The huntsmen are not out today and there are no other dangers at hand that I can see. True, my friend, replied the Boar, but the instant my life is in danger, I shall need to use my tusks. There will be no time to sharpen them then.”

“Simplicity and sincerity generally go hand in hand, as both proceed from a love of truth.”

“Joy, feeling one's own value, being appreciated and loved by others, feeling useful and capable of production are all factors of enormous value for the human soul.”

“The goal of early childhood education should be to activate the child's own natural desire to learn.”

“The most important period of life is not the age of university studies, but the first one, the period from birth to the age of six.”