“Friendship is one of the grand fundamental principles of "Mormonism"; [it is designed] to revolutionize and civilize the world, and cause wars and contentions to cease and men to become friends and brothers.”

Source: Between Caesar and Jesus (1899), p. 16

Source: Who Is Man? (1965), Ch. 5<!-- Disavowal of transcendence, p. 83 -->
Context: As a result of letting the drive for power dominate existence, man is bound to lose his sense for nature's otherness. Nature becomes a utensil, an object to be used. The world ceases to be that which is and becomes that which is available.
It is a submissive world that modern man is in the habit of sensing, and he seems content with the riches of thinghood. Space is the limit of his ambitions, and there is little he desires besides it. Correspondingly, man’s consciousness recedes more and more in the process of reducing his status to that of a consumer and manipulator. He has enclosed himself in the availability of things, with the shutters down and no sight of what is beyond availability.

The Colossus of Maroussi (1941)

Source: The Foundations of Normal and Abnormal Psychology (1914), p. 117

Speech delivered at the officers' club (June 16, 1959).
Principles of the 14th July Revolution (1959)

"The True Modernism"
Foundations of World Unity
Context: From every standpoint the world of humanity is undergoing a re-formation. The laws of former governments and civilizations are in process of revision, scientific ideas and theories are developing and advancing to meet a new range of phenomena, invention and discovery are penetrating hitherto unknown fields revealing new wonders and hidden secrets of the material universe; industries have vastly wider scope and production; everywhere the world of mankind is in the throes of evolutionary activity indicating the passing of the old conditions and advent of the new age of re-formation. Old trees yield no fruitage; old ideas and methods are obsolete and worthless now. Old standards of ethics, moral codes and methods of living in the past will not suffice for the present age of advancement and progress.
This is the cycle of maturity and re-formation in religion as well. Dogmatic imitations of ancestral beliefs are passing. They have been the axis around which religion revolved but now are no longer fruitful; on the contrary, in this day they have become the cause of human degradation and hindrance. Bigotry and dogmatic adherence to ancient beliefs have become the central and fundamental source of animosity among men, the obstacle to human progress, the cause of warfare and strife, the destroyer of peace, composure and welfare in the world.

As quoted in The Beacon Book of Quotations by Women (1992) by Rosalie Maggio, p. 130

Socialism (1922), Epilogue (1947)
Context: When people were committed to the idea that in the field of religion only one plan must be adopted, bloody wars resulted. With the acknowledgment of the principle of religious freedom these wars ceased. The market economy safeguards peaceful economic co-operation because it does not use force upon the economic plans of the citizens. If one master plan is to be substituted for the plans of each citizen, endless fighting must emerge. Those who disagree with the dictator's plan have no other means to carry on than to defeat the despot by force of arms.

An Almanac of Liberty (1954), p. 238
Other speeches and writings