He Who Hid Well, Lived Well.

Omnia Apud Me Mathematica Fiunt.

I Experienced In Myself A Certain Capacity For Judging Which I Have Doubtless Received From God, Like All The Other Things That I Possess; And As He Could Not Desire To Deceive Me, It Is Clear That He Has Not Given Me A Faculty That Will Lead Me To Err If I Use It Aright.

Perfect Numbers Like Perfect Men Are Very Rare.

Divide Each Difficulty At Hand Into As Many Pieces As Possible And As Could Be Required To Better Solve Them.

Travelling Is Almost Like Talking With Those Of Other Centuries.