Think globally, act locally.
Nobody made a greater mistake than he who did nothing because he could do only a little.
The only real laughter comes from despair.
The only limit to our realization of tomorrow will be our doubts of today.
He that cannot reason is a fool. He that will not is a bigot. He that dare not is a slave.
He alone is free who lives with free consent under the entire guidance of reason.
Those who can not change their minds can not change anything.
Intelligence is a moral category.
Wisdom... comes not from age, but from education and learning.
A house is not a home unless it contains food and fire for the mind as well as the body.
If you are neutral in situations of injustice, you have chosen the side of the oppressor.
All differences in this world are of degree, and not of kind, because oneness is the secret of everything.
I have had good experience and trial of this world...I know what it is to be a subject, what to be a sovereign, what to have good neighbours, and sometimes meet evil willers. I have found treason in trust, seen great benefits little regarded.
Wisdom is not the product of schooling, but of the lifelong attempt to acquire it.
Whatever it is you're seeking won't come in the form you're expecting.
Courage is resistance to fear, mastery of fear - not absence of fear.
A proverb is much matter distilled into few words.
Knowing yourself is the beginning of all wisdom.
Knowledge speaks, but wisdom listens
Adapt what is useful, reject what is useless, and add what is specifically your own.
If we don't believe in freedom of expression for people we despise, we don't believe in it at all.