A barrier is of ideas, not of things.
At all times it is better to have a method.
There is nothing wrong in using people. The success never uses people except to their advantage.
Meticulous planning will enable everything a man does to appear spontaneous.
You cannot live on other people's promises, but if you promise others enough, you can live on your own.
To know the right means of getting something done is virtually to have done it.