Baseball – 3 strikes and you’re out, 3 outs and the inning is over

  • Football – offense, defense, and special teams

  • Basketball – triple double (points, rebounds, assists)

  • Hockey (field and ice) and Soccer – Hat Trick (3 goals scored consecutively by the same player in

one game)

  • Soccer – Golden Hat Trick (3 consecutive scores: 1 with left foot, 1 with right foot, 1 with head)​


  • Christianity’s Holy Trinity
  • Judaism’s 3 Patriarchs: Abraham, Isaac, and Jacob
  • (and more, but enough said about religion on a design blog)


  • C3 is close to pi (
  • 3 is the number of non-co- linear points needed to determine a plane and a circle
  • 3 is the first prime odd number
  • 3 is the only prime triangular number

Software Engineering:

  • 3-Tier Architecture – presentation, application processing, and data management functions are physically separated


  • The Roman Numeral III stands for giant star in the Yerkes Spectral classification
  • 3 is the atomic number of Lithium
  • 3 is the number of humanly visualized dimensions (string theory has more)
  • A triangle is the most stable shape


  • 3 ”primes” are: salt, sulfur, and mercury

Ayurvedic Medicine:

  • 3 “doshas” (weaknesses) and their antidotes


  • Hegel’s dialectic of Thesis, Antithesis = synthesis (creates 3ness out of 2ness)


  • Julius Caesar’s firsthand account of the Gallic Wars: “Gallia est omnis divisa in partes tres,” meaning “Gaul is a whole divided into three parts.” (Note: Gaul refers to all of the regions that Romans had not conquered or administered or which were primarily inhabited by Celts. It also meant “uncouth” or “unsophisticated” as Romans saw Celtic peoples as uncivilized compared to Romans.) For a related topic, check out the Amazon Prime Video series “Brittania.”

Flowering Arranging / Japanese:

  • Shape, Line and Form
  • An odd number of flowers is lucky, while an even number is unlucky and undesirable. Odd
    numbers avoid symmetry and equal balance, both of which are rarely found in nature.
  • The structure of some Japanese flower arrangements is based on a scalene (uneven lengths)
    triangle, symbolizing heaven, human, and earth.

Landscape Architecture:

  • Unity, scale, balance
  • Simplicity, variety, emphasis
  • Line, form, texture, color (oops 4!)
  • Start with trees (high) then shrubs (medium) then perennials and ground cover (low)
  • Plant in masses: 30 instead of 3

Architecture - Buildings:

  • Gables – the triangle roof form common to vernacular and traditional architecture

  • The Classical Order of Columns: Doric, Ionic, and Corinthian; and capital, column, base

  • Vitruvius (early 1 st century): a good building should fulfill these principleso

    • Firmitas (firmness/durability)

    • Utilitas (commodity/practicality)

    • Venustas (delight/beauty/aesthetically pleasing)


  • Le Corbusier
    • “You employ stone, wood and concrete, and with these materials you build houses andpalaces: that is, construction. Ingenuity is at work. But suddenly you touch my heart,you do me good. I am happy and I say: This is beautiful. That is Architecture.”


Perhaps the 3’s of Interior Design can wait for another post.

Here’s a trio that make up the head, heart, and soul of Leslie Saul & Associates.


Do you need 3 good reasons for you to call upon us for your next architecture or interiors project? We would love to help!

What is it about the number 3? 3 pops us as an important number in almost every field:​​

The Power of 3

Leslie Saul & Associates, Inc.

architecture and interiors


Leslie Saul & Associates, Inc.

architecture and interiors

Leslie Saul & Associates, Inc.

architecture and interiors

architecture and interiors