Genius is one per cent inspiration, ninety-nine per cent perspiration.
All truth passes through three stages. First, it is ridiculed. Second, it is violently opposed. Third, it is accepted as being self-evident.
I felt the doors open near me, and then saw a confusion of booted feet moving close by.
The human mind treats a new idea the same way the body treats a strange protein; it rejects it.
A lifetime of happiness! No man alive could bear it: it would be hell on earth.
Sometimes the cure for restlessness is rest.
It is a paradoxical but profoundly true and important principle of life that the most likely way to reach a goal is to be aiming not at that goal itself but at some more ambitious goal beyond it.