What Are the Foundational Teachings of the Buddha Dharma?

The Four Noble Truths (This includes the Eightfold Path)
........1...There is Dukkha (Stress, Anxiety, Worry, Dissatisfaction)
........2...Dukkha has a cause - Thirst or Desire
........3...There is freedom from dukkha
........4...This freedom is realized by following the Noble Eightfold Path
..................Proper Understanding
..................Proper Intention
..................Proper Speech
..................Proper Action
..................Proper Livelihood
..................Proper Effort
..................Proper Awareness (Mindfulness)
..................Proper Meditation (Concentration)

The Three Jewels
........The Buddha
........The Dharma
........The Sangha

The Five Aggregates (Skandhas)
........Form (Our Environment)
........Feelings or Sensations
........Perception or Awareness
........Response (Mental Formations)
........Consciousness

The Three Marks of Existence
........Impermanence
........Dukkha (Stress, Anxiety, Worry, Dissatisfaction)
........No-Self

Cause and Effect
........If this exists, that exists; if this ceases to exist, that also ceases to exist.

Karma and Vipaka
........Karma is Intentional Action; doing, speaking, thinking.
........Vipaka is the Consequence or Result, the Ripening of an Intentional Action.

The Six Perfections (Paramitas)
........Generosity
........Ethical Practice
........Patience
........Meditation
........Wisdom