An Appeal to the Young (1880)
Context: If you reason instead of repeating what is taught you; if you analyze the law and strip off those cloudy fictions with which it has been draped in order to conceal its real origin, which is the right of the stronger, and its substance, which has ever been the consecration of all the tyrannies handed down to mankind through its long and bloody history; when you have comprehended this, your contempt for the law will be profound indeed. You will understand that to remain the servant of the written law is to place yourself every day in opposition to the law of conscience, and to make a bargain on the wrong side; and, since this struggle cannot go on forever, you will either silence your conscience and become a scoundrel, or you will break with tradition, and you will work with us for the utter destruction of all this injustice, economic, social and political.
Source: Commentary on the Epistle to the Galatians (1535), Chapter 2, Verse 19
“If you cannot reconcile yourself to the law, remain in the cradle.”
Que si a la Ley no te ajustas, quedó en la cuna labrada la materia de la tumba.
Segismundo, Act I, l. 956-958.
La vida es sueño (Life is a Dream)
“Calumny can injure you only if you reflect yourself in others and not in your conscience.”
Examples of self-translation (c. 2004), Quotes - Zitate - Citations - Citazioni
Source: Guide for the Perplexed (c. 1190), Part III, Ch.29
Context: You know from the repeated declarations in the Law that the principal purpose of the whole Law was the removal and utter destruction of idolatry, and all that is connected therewith, even its name, and everything that might lead to any such practices, e. g., acting as a consulter with familiar spirits, or as a wizard, passing children through the fire, divining, observing the clouds, enchanting, charming, or inquiring of the dead. The law prohibits us to imitate the heathen in any of these deeds, and a fortiori to adopt them entirely. It is distinctly said in the Law that everything which idolaters consider as service to their gods, and a means of approaching them, is rejected and despised by God... Thus all precepts cautioning against idolatry, or against that which is connected therewith, leads to it, or is related to it, are evidently useful.
“The more you obey your conscience, the more your conscience will demand of you.”
Book IV, Chapter 8, "Is Christianity Hard or Easy?"
Mere Christianity (1952)
“What does your conscience say? — "You shall become the person you are."”
Was sagt dein Gewissen?
'Du sollst der werden, der du bist.'
Variant translation: Become who you are.
It is noted here http://www.anonymityone.com/Faq97.htm, here http://www.google.it/search?num=100&hl=en&safe=off&q=%22Become%20who%20you%20are%22+Pindar+Nietzsche&um=1&ie=UTF-8&tbo=u&tbm=bks and here http://www.google.it/search?num=100&hl=it&safe=off&biw=1440&bih=690&q=%22%28become+what+you+are%29+after+the+ancient+Greek+poet+Pindar.+See+Ecce+Homo+%28Nietzsche%29%22 that the phrase was first used by Pindar, and was merely re-used by Nietzsche.
Sec. 270
The Gay Science (1882)
“In matters of conscience, the law of majority has no place.”
Young India (4 August 1920)
1920s
