#difficulty

The solution of the difficulty is that the two mental pictures which experiment lead us to form - the one of the particles, the other of the waves - are both incomplete and have only the validity of analogies which are accurate only in limiting cases. ↗

— Werner Heisenberg

#both #cases #difficulty #experiment #form

The difficulty lies not so much in developing new ideas as in escaping from old ones. ↗

— John Maynard Keynes

#difficulty #escaping #ideas #lies #much

A system of education, which would not gratify this disposition in any party, is requisite, in order to obviate the difficulty, and the reader will find a something said to that purpose in perusing this tract. ↗

— Joseph Lancaster

#difficulty #disposition #education #find #gratify

The complaint of bad pay, and difficulty in obtaining it, is almost generally reiterated through every department of education. ↗

— Joseph Lancaster

#bad #complaint #department #difficulty #education

Owing to the difficulty of dealing with substances of high molecular weight we are still a long way from having determined the chemical characteristics and the constitution of proteins, which are regarded as the principal con-stituents of living organisms. ↗

— Karl Landsteiner

#chemical #constitution #dealing #determined #difficulty

Rocket science has been mythologized all out of proportion to its true difficulty. ↗

— John Carmack

#difficulty #out #proportion #rocket #rocket science

The difficulty is not that great to die for a friend, the hard part is finding a friend worth dying for. ↗

— Henry Home

#difficulty #dying #finding #friend #great