Tact is the discrimination of differences. It consists in conscious deviations.

A German is someone who cannot tell a lie without believing it himself.

Quality is decided by the depth at which the work incorporates the alternatives within itself, and so masters them.

Love is the power to see similarity in the dissimilar.

What has become alien to men is the human component of culture, its closest part, which upholds them against the world. They make common cause with the world against themselves, and the most alienated condition of all, the omnipresence of commodities, their own conversion into appendages of machinery, is for them a mirage of closeness.

Not only is the self entwined in society; it owes society its existence in the most literal sense.

A pencil and rubber are of more use to thought than a battalion of assistants. To happiness the same applies as to truth: one does not have it, but is in it.