it is not necessary to accept ...

it is not necessary to accept everything as true, one must only accept it as necessary.\' \'A melancholy conclusion,\' said K. \'It turns lying into a universal principle.
it is not necessary to accept everything as true, one must only accept it as necessary.' 'A melancholy conclusion,' said K. 'It turns lying into a universal principle.

More phrases

[The Jews] tried to kill the principles of all religions with the same mentality in which they betrayed Jesus Christ and the same way they tried to betray and kill the Prophet Muhammad.
 Bashar al-Assad
The Warrior Diet is the only diet today that challenges all common dietary concepts and offers a real alternative—guidelines that are not based on superficial restrictions, but rather on true principles of human nutrition.
 Ori Hofmekler
Men are anxious to improve their circumstances, but are unwilling to improve themselves; they therefore remain bound.
Men submit from habit to everything that seeks power.
My mother was the source from which I derived the guiding principles of my life.
 John Wesley

Quotes from the same author

Start with what is right rather than what is acceptable.
Youth is happy because it has the ability to see beauty. Anyone who keeps the ability to see beauty never grows old.
German is my mother tongue and as such more natural to me, but I consider Czech much more affectionate, which is why your letter removes several uncertainties; I see you more clearly, the movements of your body, your hands, so quick, so resolute, it’s almost like a meeting.
The history of the world, as it is written and handed down by word of mouth, often fails us completely; but man's intuitive capacity, though it often misleads, does lead, does not ever abandon one.
Anybody who preserves the ability to recognize beauty will never get old.