No one would choose a friendless existence on condition of having all the other things in the world. 

Aristotle

There is little friendship in the world, and least of all between equals.

Francis Bacon

We are all travelers in the wilderness of this world, and the best we can find in our travels is an honest friend.

Robert Louis Stevenson

Friendship with oneself is all important because without it one cannot be friends with anybody else in the world.

Eleanor Roosevelt (1884–November 7, 1962) was First Lady of the United States from 1933 to 1945

Friendship with oneself is all-important because without it one cannot be friends with anyone else in the world.

Eleanor Roosevelt, (1884–1962)  First Lady of the United States from 1933 to 1945.

Each friend represents a world in us, a world possibly not born until they arrive, and it is only by this meeting that a new world is born.

Anais Nin (1903 -  1977)  A Cuban-French author