Quote from Seneca:
We should live as if we were in public view, and think, too, as if someone could peer into the inmost recesses of our hearts—which someone can!
You can only acquire it successfully if you cease to feel any sense of shame.
Whatever you habitually think yourself to be, that you are. You must form, now, a greater and better habit; you must form a conception of yourself as a being of limitless power, and habitually think that you are that being. It is the habitual, not the periodical thought that decides your destiny.
There is nothing the wise man does reluctantly.
Step aside from all thinking, and there is nowhere you can't go.
Read less and think more. Read about great things and think about great questions and issues.
Whether you think you can or think you can't - you are right.
What I must do is all that concerns me, not what the people think. This rule, equally arduous in actual and in intellectual life, may serve for the whole distinction between greatness and meanness.
"The philosopher: he alone knows how to live for himself. He is the one, in fact, who knows the fundamental thing: how to live."
No one has ever been able to control his thinking, although people may tell the story of how they have. I don’t let go of my thoughts—I meet them with understanding. Then they let go of me.
Let our advance worrying become advance thinking and planning.
We may divide thinkers into those who think for themselves and those who think through others. The latter are the rule and the former the exception. The first are original thinkers in a double sense, and egotists in the noblest meaning of the word.