Sigmund Freud:
1- Dreams act as the guardians of sleep.
2- Illusions commend themselves to us because they save us pain and allow us to enjoy pleasure instead.
3- Men are strong so long as they represent a strong idea they become powerless when they oppose it.
4- The conscious mind may be compared to a fountain playing in the sun and falling back into the great subterranean pool of subconscious from which it rises.
5- The tendency to aggression is an innate, independent, instinctual disposition in man... it constitutes the powerful obstacle to culture.
Isaac Newton:
1- To myself I am only a child playing on the beach, while vast oceans of truth lie undiscovered before me.
2- We build too many walls and not enough bridges.
3- I can calculate the motion of heavenly bodies, but not the madness of people.
4- The seed of a tree has the nature of a branch or twig or bud. It is a part of the tree, but if separated and set in the earth to be better nourished, the embryo or young tree contained in it takes root and grows into a new tree.
5- A man may imagine things that are false, but he can only understand things that are true.
Maria Agnesi:
1- Educating women is not a source of temptation or sin.
2- I think that one may become lost in the maze of inextricable difficulties, if not assisted by secure guidance and sage direction.
3- Three conditions: that she go to church whenever she wished, that she dress simply and humbly, that she abandon altogether balls, theatres, and profane amusements.
4- Proceed with that natural order which provides, perhaps, the best instruction and the greatest light.
5- Something simple and humble can turn to something successful. (in regards to Analytical Institutions, the textbook that Agnesi started for her brothers and then took more serious and ended up being published.)
