The Bible is a great source of wisdom and consolation and should be read frequently
One should respect an honest person even if he expresses opinions differing from one's own.
No path leads from a knowledge of that which is to that which should be.
A model should be as simple as it can be but no simpler
If only I had known, I should have become a watchmaker.
Why should i remember anything if i can just look it up?
Those instrumental goods which should serve to maintain the life and health of all human beings should be produced by the least possible labour of all.
I myself should also be dead already, but I am still here.
I should very much like to remain in the darkness of not having been analyzed.
[Misquotation; not by Einstein.] If only I had known, I should have become a watchmaker. [Apparently remorseful for his role in the development of the atom bomb.]
Things you can get access to, you should never memorize.
Science can only state what is, not what should be.