Lay down true principles and ...

Lay down true principles and adhere to them inflexibly. Do not be frightened into their surrender by the alarms of the timid, or the croakings of wealth against the ascendency of the people.
Lay down true principles and adhere to them inflexibly. Do not be frightened into their surrender by the alarms of the timid, or the croakings of wealth against the ascendency of the people.

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

I hope we shall crush in its birth the aristocracy of our monied corporations which dare already to challenge our government to a trial by strength, and bid defiance to the laws of our country.
Don't talk about what you have done or what you are going to do.
Never put off till tomorrow what you can do today.
I never considered a difference of opinion in politics, in religion, in philosophy, as cause for withdrawing from a friend.
I'm a great believer in luck and I find the harder I work, the more I have of it.