I have offended God and mankind because my work didn't reach the quality it should have.

You should prefer a good scientist without literary abilities than a literate one without scientific skills

If you are alone you belong entirely to yourself. If you are accompanied by even one companion you belong only half to yourself or even less in proportion to the thoughtlessness of his conduct and if you have more than one companion you will fall more deeply into the same plight.

Men of lofty genius when they are doing the least work are most active.

If you are on the side whence the wind is blowing you will see the trees looking much lighter than you would see them on the other sides; and this is due to the fact that the wind turns up the reverse side of the leaves which in all trees is much whiter than the upper side.

To lie is vile, to tell truth is excellent, if not noble.

We are deceived by promises and time disappoints us.