Most worldly affairs are performed by themselves.

Montaigne

Though all that has arrived, by report, of our knowledge of times past should be true, and known by some one person, it would be less than nothing in comparison of what is unknown. And of this same image of the world, which glides away whilst we live upon it, how wretched and limited is the knowledge of the most curious; not only of particular events, which fortune often renders exemplary and of great concern, but of the state of great governments and nations, a hundred more escape us than ever come to our knowledge.

Montaigne

Contemplate the marvel that is existence, and rejoice that you are able to do so.  I feel I have the right to tell you this because, as I am inscribing these words, I am doing the same.

Ted Chiang, Exhalation

There are intelligible principles inherent in the matter of every phenomenon; because matter is essentially the sum of all the seemings that it has for any and all persons. 

Protagoras (the Sophist)

All things must be either limiting, or unlimited, or both limiting and unlimited.  Since things cannot consist either of the limiting alone or of the unlimited alone ... we must obviously conclude that the universe and its contents are fitted together and harmonized by a combination of the limiting and the unlimited.

For if everything that is were unlimited, there would not be anything of such a character that it could be recognized.

Philolaus  (a Pythagorean)

The wind is blowing; adore the wind.

From the Pythagorean symbola

The virtue of the soul does not consist in flying high, but in walking orderly; its grandeur does not exercise itself in grandeur, but in mediocrity.

Montaigne

Man is a small kosmos.

Democritus, (per Philip Wheelwright, The PreSocratics)

In everything there is a portion of everything else.

Anaxagoras, (per Philip Wheelwright, The PreSocratics)

To be is possible and not-to-be is impossible.... Thought and being are the same.

Parmenides, (per Philip Wheelwright, The PreSocratics)

Everything flows and nothing abides; everything gives way and nothing stays fixed.... It is in changing that things find repose.

Men who love wisdom should acquaint themselves with a great many particulars.

Heraclitus (per Philip Wheelwright, The PreSocratics)

Exponential growth inside a finite system leads to collapse.

Richard Powers, The Overstory

To see into thy nature, O Zeus, is baffling to the mind. I have been praying to thee without knowing whether thou art necessity or nature or simply the intelligence of mortals. 

Euripides, The Trojan Women (per Philip Wheelwright, The PreSocratics

They who retire themselves from the common offices, from that infinite number of troublesome rules that fetter a man of exact honesty in civil life, are in my opinion very discreet.

Montaigne

Human beings and fundamental particles share one absolute commonality: they exist in their interactions.  In between times, their positions and trajectories are indecipherable even to themselves.

Nick Harkaway, Gnomon

For there are these three things that endure: Faith, Hope and Love, but the greatest of these is Love.
Run after love and be zealous for the gifts of The Spirit, that you may know the truth.

1 Corinthians 13-14 

How many brave individual actions are buried in the crowd of a battle? 

Michel de Montaigne

Emptiness is not nothingness. Emptiness is a type of existence.

Cixin Liu, The Three-Body Problem 

Few men come to die in the opinion that it is their latest hour,,,, Which happens by reason that we set too much value upon ourselves; it seems as if the universality of things were in some measure to suffer by our dissolution, and that it commiserates our condition, forasmuch as our disturbed sight represents things

Michel de Montaigne

Montaigne on Death

But in dying, which is the greatest work we have to do, practice can give us no assistance at all.  A man may by custom fortify himself against pain, shame, necessity, and such-like accidents, but as to death, we can experiment it but once, and are all apprentices when we come to it.  There have, anciently, been men so excellent managers of their time that they have tried even in death itself to relish and taste it, and who have bent their utmost faculties of mind to discover what this passage is, but they are none of them come back to tell us the news....
 

Julius Canus, a noble Roman, of singular constancy and virtue, having been condemned to die by that worthless fellow Caligula, besides many marvellous testimonies that he gave of his resolution, as he was just going to receive the stroke of the executioner, was asked by a philosopher, a friend of his: “Well, Canus, whereabout is your soul now? what is she doing?  What are you thinking of?”--“I was thinking,” replied the other, “to keep myself ready, and the faculties of my mind full settled and fixed, to try if in this short and quick instant of death, I could perceive the motion of the soul when she parts from the body, and whether she has any sentiment at the separation, that I may after come again if I can, to acquaint my friends with it.” 

Michel de Montaigne