"Further, there are things of which the mind understands one part, but remains ignorant of the other; and when man is able to comprehend certain things, it does not follow that he must be able to comprehend everything"
This quote is written / told by Maimonides between March 30, 1135 and December 13, 1204. He/she was a famous Philosopher from Spain.
The author also have 23 other quotes.
"The man who makes everything that leads to happiness depends upon himself, and not upon other men, has adopted the very best plan for living happily. This is the man of moderation, the man of manly character and of wisdom"