All things are cause for either laughter or weeping.
Great grief does not of itself put an end to itself.
Most powerful is he who has himself in his own power.
The most onerous slavery is to be a slave to oneself.
Difficulties strengthen the mind, as labour the body.
There is no genius free from some tincture of madness.
Let him that would move the world, first move himself.
There is no great genius without some touch of madness.
There is no great genius without some touch of madness.
We never reflect how pleasant it is to ask for nothing.
