If a man cannot do brain work without stimulants of any kind he had better turn to hand work it is an indication on Nature's part that she did not mean him to be a head worker.
In scientific work those who refuse to go beyond fact rarely get as far as...
I have a bit of a rebellious nature.
The man who views the world at 50 the same as he did at 20 has wasted 30 years of his life.
