Dhammapada 37

Faring far, wandering alone, bodiless, lying in a cave, is the mind.
Those who subdue it are free from the bonds of Mara.

Dhammapada 211-13

From attachment springs grief
From attachment springs fear
For him who is wholly free from attachment there is no grief
Hence where is fear?

From lust springs grief
From lust springs fear
For him who is wholly free from lust there is no grief
Hence where is fear?

From craving springs grief
From craving springs fear
For him who is wholly free from craving there is no grief
Hence where is fear?

The Buddha

The mind is everything; what you think, you become.

Praise and blame, gain and loss, pleasure and sorrow come and go like the wind. 
To be happy, rest like a giant tree, in the midst of them all.

Quoted in Joseph Goldstein, The Experience of Insight

One of his students asked Buddha, "Are you the messiah?"
"No", answered Buddha.
"Then are you a healer?"
"No", Buddha replied.
"Then are you a teacher?" the student persisted.
"No, I am not a teacher."
"Then what are you?" asked the student, exasperated.
"I am awake", Buddha replied.

 As the Buddha was dying, Ananda asked who would be their teacher after death.
 He replied to his disciple "Be lamps unto yourselves ."

Dalai Lama

Traditional Buddhist teaching

First, rely on the spirit and meaning of the teachings, not on the words;
Second, rely on the teachings, not on the personality of the teacher;
Third, rely on real wisdom, not superficial interpretation;
And fourth, rely on the essence of your pure Wisdom Mind, not on judgmental perceptions.

Dhammapada

Neither nakedness nor matted hair nor mud
nor fasting nor lying on the ground
nor rubbing with dust nor sitting motionless
purify a mortal who is not free from doubt and desire.

Dhammapada

If you find an intelligent companion
who will walk with you,
who lives wisely, soberly, overcoming all dangers,
walk with that person in joy and thoughtfulness.

If you find no intelligent companion
who will walk with you,
who lives wisely and soberly,
walk alone like a king who has renounced a conquered kingdom
or like an elephant in the forest.

Albert Einstein

The religion of the future will be a cosmic religion.
It should transcend personal God and avoid dogma and theology.
Covering both the natural and the spiritual, it should be based on a religious sense
arising from the experience of all things natural and spiritual as a meaningful unity.
Buddhism answers this description ... if there is any religion that could cope with modern scientific needs, it would be Buddhism.