The main thing we were made for is to work with others.

Always follow these two rules: first, act only on what your reasoning mind proposes for the good of humanity, and second, change your opinion if someone shows you it's wrong. This change of mind must proceed only from the conviction that it's both correct and for the common good, but not because it will give you pleasure and make you popular.

‎"Begin the morning by saying to thyself, I shall meet with the busy-body, the ungrateful, arrogant, deceitful, envious, unsocial

Be content with what you are, and wish not change; nor dread your last day, nor long for it.

All things are in the act of change; thou thyself in ceaseless transformation and partial decay, and the whole universe with thee.

Frequently consider the connection of all things in the universe. .. We should not say 'I am an Athenian' or 'I am a Roman' but 'I am a citizen of the Universe.

Anger cannot be dishonest.