As quoted in  Diary of Gideon Wells http://www.jstor.org/stable/pdf/2713705.pdf?acceptTC=true (1861–1864), Volume I, p. 152. 
Context: Mr. Bates was for compulsory deportation. 'The Negro would not', he said, 'go voluntary'. He had great local attachment but no enterprise or persistency. The President objected unequivocally to compulsion. The emigration must be voluntary and without expense to themselves. Great Britain, Denmark and perhaps other powers would take them. I remarked there was no necessity for a treaty which had been suggested. Any person who desired to leave the country could do so now, whether white or black, and it was best to have it so-a voluntary system; the emigrant who chose to leave our shores could and would go where there were the best inducements.
                                    
“If your object is to secure liberty, you must learn to do without authority and compulsion.”
            What Is Anarchism? (1929),  Ch. 26: "Preparation" http://libcom.org/library/what-is-anarchism-alexander-berkman-26 
Context: If your object is to secure liberty, you must learn to do without authority and compulsion. If you intend to live in peace and harmony with your fellow-men, you and they should cultivate brotherhood and respect for each other. If you want to work together with them for your mutual benefit, you must practice cooperation. The social revolution means much more than the reorganization of conditions only: it means the establishment of new human values and social relationships, a changed attitude of man to man, as of one free and independent to his equal; it means a different spirit in individual and collective life, and that spirit cannot be born overnight. It is a spirit to be cultivated, to be nurtured and reared, as the most delicate flower it is, for indeed it is the flower of a new and beautiful existence.
        
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Alexander Berkman 6
anarchist and writer 1870–1936Related quotes
“Liberty without Learning is always in peril and Learning without Liberty is always in vain.”
                                        
                                        1963, Address at Vanderbilt University 
Context: The essence of Vanderbilt is still learning, the essence of its outlook is still liberty, and liberty and learning will be and must be the touchstones of Vanderbilt University and of any free university in this country or the world. I say two touchstones, yet they are almost inseparable, inseparable if not indistinguishable, for liberty without learning is always in peril, and learning without liberty is always in vain.
                                    
1963, Address at Vanderbilt University
“Property must be secured, or liberty cannot exist.”
                                        
                                        No. 13 
1790s, Discourses on Davila (1790) 
Context: Property must be secured, or liberty cannot exist. But if unlimited or unbalanced power of disposing property, be put into the hands of those who have no property, France will find, as we have found, the lamb committed to the custody of the wolf. In such a case, all the pathetic exhortations and addresses of the national assembly to the people, to respect property, will be regarded no more than the warbles of the songsters of the forest. The great art of law-giving consists in balancing the poor against the rich in the legislature, and in constituting the legislative a perfect balance against the executive power, at the same time that no individual or party can become its rival. The essence of a free government consists in an effectual control of rivalries. The executive and the legislative powers are natural rivals; and if each has not an effectual control over the other, the weaker will ever be the lamb in the paws of the wolf. The nation which will not adopt an equilibrium of power must adopt a despotism. There is no other alternative. Rivalries must be controlled, or they will throw all things into confusion; and there is nothing but despotism or a balance of power which can control them.
                                    
                                        
                                        in an interview with William F. Buckley Jr. , November 17, 1977 
1965
                                    
Source: Legal foundations of capitalism. 1924, p. 95
                                        
                                        Farewell Address, (4 March 1837), recalling what, by then, had reached the status of a proverb. 
1830s
                                    
                                        
                                        Saturday Review (29 October 1960), p. 44 
1960 
Context: If this nation is to be wise as well as strong, if we are to achieve our destiny, then we need more new ideas for more wise men reading more good books in more public libraries. These libraries should be open to all — except the censor. We must know all the facts and hear all the alternatives and listen to all the criticisms. Let us welcome controversial books and controversial authors. For the Bill of Rights is the guardian of our security as well as our liberty.
                                    
“Liberty, as such, is only the negative of duty, the absence of restraint or compulsion.”
Source: Legal foundations of capitalism. 1924, p. 118