Science is bound, by the everlasting vow of honour, to face fearlessly every problem which can be fairly presented to it.
Vortices of pure energy can exist and, if my theories are right, can compose the bodily form of an intelligent species.
To live among friends is the primary essential of happiness.
You know only insofar as you can measure.
When you are face to face with a difficulty, you are up against a discovery.
Simplification of modes of proof is not merely an indication of advance in our knowledge of a subject, but is also the surest guarantee of readiness for farther progress.