Beware in the presence of cats: they never give, they do not even retaliate--they only reply, and purr in doing so.

A casual stroll through the lunatic asylum shows that faith does not prove anything.

Science offends the modesty of all real women. It makes them feel as though it were an attempt to peek under their skin--or, worseyet, under their dress and ornamentation!

Whoever gives advice to a sick person acquires a feeling of superiority over him, whether the advice be accepted or rejected.

What is wanted - whether this is admitted or not - is nothing less than a fundamental remolding, indeed weakening and abolition of the individual: one never tires of enumerating and indicating all that is evil and inimical, prodigal, costly, extravagant in the form individual existence has assumed hitherto, one hopes to manage more cheaply, more safely, more equitably, more uniformly if there exist only large bodies and their members.

One repays a teacher badly if one always remains nothing but a pupil.

Whatever is gold does not glitter. A gentle radiance belongs to the noblest metal.