Euripides Pure mathematics is, in its way, the poetry of logical ideas. Einstein A scientist knows more and more about less and less till he knows everything about nothing, while a philosopher knows less and less about more and more till he knows nothing about everything. There are more things in heaven and earth, Horatio, than are dreamt of in your philosophy. There are no differences but differences of degree between different degrees of difference and no difference. Those who have excessive faith in their ideas are not well fitted to make discoveries.
Engineers are always honest in matters of technology and human relationships.
That's why it's a good idea to keep engineers away from customers, romantic interests, and other people who can't handle the truth. By a 'silly' theory I mean one which may be held at the time when one is talking or writing professionally, but which only an inmate of a lunatic asylum would think of carrying into daily life. It must not be supposed that the men who maintain these theories and beliefs are 'silly' people. Only very acute and learned men could have thought of anything so odd or defended anything so preposterous against the continual protests of common sense. Each of us lives within the universe - the prison of his own brain.