Consequently he who wishes to attain to human perfection, must therefore first study Logic, next the various branches of Mathematics in their proper order, then Physics, and lastly Metaphysics.
The whole object of the Prophets and the Sages was to declare that a limit is set to human reason where it must halt.
Inspire me with love for my art and for thy creatures. In the sufferer let me see only the human being.
The philosophers likewise assume that in Nature there is nothing in vain, so that everything that is not the product of human industry serves a certain purpose, which may be known or unknown to us.
A small amount of wine such as three or four glasses is of benefit for the preservation of the health of human beings and an excellent remedy for most illnesses.
Know that for the human mind there are certain objects of perception which are within the scope of its nature and capacity; on the other hand, there are, amongst things which actually exist, certain objects which the mind can in no way and by no means grasp: the gates of perception are closed against it.
There is no difference between the worry of a human mother and an animal mother for their offspring. A mother's love does not derive from the intellect but from the emotions, in animals just as in humans.